Filed by Echostar Communications Corporation
                           Pursuant to Rule 425 under the Securities Act of 1933
                                        and deemed filed pursuant to Rule 14a-12
                                         of the Securities Exchange Act of  1934

                               Subject Companies: Hughes Electronics Corporation
                                                     Commission File No. 0-26035
                                                      General Motors Corporation
                                                     Commission File No. 1-00143
                                                            Date: March 20, 2002

[ECHOSTAR LOGO]                                                   [HUGHES LOGO]
5701 South Santa Fe Drive                                          P.O. Box 956
Littleton, CO 80120                                       200 N. Sepulveda Blvd
                                                      El Segundo, CA 90245-0956


                                 MEDIA ADVISORY

                          ECHOSTAR AND DIRECTV PRESENT:

(Green Bay, WI) - On March 21, 2002 at 11:30 a.m.,  Rep.  Phil  Montgomery  will
host a  demonstration  showcasing  satellite-delivered  digital  television  and
high-speed  Internet access and explain how the completion of the merger between
EchoStar  Communications  Corporation and Hughes Electronics'  DIRECTV will make
local TV channels  available to every  resident in Wisconsin.  Attendees will be
able to surf the Internet, delivered via satellite, following the demonstration.

                      THE DEMONSTRATION WILL TAKE PLACE...
                            THURSDAY, MARCH 21, 2002
                                   11:30 A.M.
                           333 MAIN STREET, GREEN BAY

                                 RSVP MANDATORY.


DISH Network is a trademark of EchoStar Communications Corporation. DISH Network
is  EchoStar's  state-of-the-art  direct  broadcast  satellite TV system that is
capable of offering  over 500  channels of digital  video and  CD-quality  audio
programming,   as  well  as  advanced   satellite   TV  receiver   hardware  and
installation.  EchoStar is included in the Nasdaq-100 Index (NDX).  DISH Network
currently  serves  over 7  million  customers.  For  more  information,  contact
1-800/333-DISH (3474) or visit

DIRECTV is the nation's leading digital  satellite  television  service provider
with more than 10.7 million  customers.  DIRECTV and the Cyclone Design logo are
registered   trademarks  of  DIRECTV,   Inc.,  a  unit  of  Hughes   Electronics
Corporation.  HUGHES is the  world's  leading  provider  of  digital  television
entertainment,  broadband services,  satellite-based  private business networks,
and global  video and data  broadcasting.  The  earnings  of  HUGHES,  a unit of
General  Motors  Corporation,  are used to  calculate  the  earnings  per  share
attributable  to the General  Motors  Class H common stock  (NYSE:  GMH).  Visit
DIRECTV on the World Wide Web at

                                    - more -

In connection with the proposed transactions, General Motors Corporation ("GM"),
Hughes   Electronics   Corporation   ("Hughes")   and  EchoStar   Communications
Corporation  ("EchoStar")  intend to file relevant materials with the Securities
and Exchange Commission, including one or more Registration Statement(s) on Form
S-4 that contain a prospectus and proxy/consent solicitation statement.  Because
those documents will contain important information,  holders of GM $1-2/3 and GM
Class H common stock are urged to read them, if and when they become  available.
When filed with the SEC, they will be available  for free at the SEC's  website,, and GM stockholders will receive information at an appropriate time
on how to obtain transaction-related  documents for free from GM. Such documents
are not currently available.

GM and its directors and executive officers, Hughes and certain of its officers,
and  EchoStar  and  certain  of  its  executive  officers  may be  deemed  to be
participants in GM's  solicitation of proxies or consents from the holders of GM
$1-2/3 common stock and GM Class H common stock in connection  with the proposed
transactions.  Information regarding the participants and their interests in the
solicitation was filed pursuant to Rule 425 with the SEC by EchoStar on November
1, 2001 and by each of GM and Hughes on November 16, 2001.  Investors may obtain
additional  information  regarding the interests of the  participants by reading
the prospectus and proxy/consent  solicitation  statement if and when it becomes

This communication  shall not constitute an offer to sell or the solicitation of
an offer to buy, nor shall there be any sale of securities  in any  jurisdiction
in  which  such  offer,   solicitation  or  sale  would  be  unlawful  prior  to
registration   or   qualification   under  the  securities   laws  of  any  such
jurisdiction.  No  offering  of  securities  shall be made  except by means of a
prospectus meeting the requirements of Section 10 of the Securities Act of 1933,
as amended.

Materials included in this document contain "forward-looking  statements" within
the  meaning of the  Private  Securities  Litigation  Reform  Act of 1995.  Such
forward-looking  statements  involve known and unknown risks,  uncertainties and
other  factors that could cause our actual  results to be  materially  different
from historical  results or from any future results expressed or implied by such
forward-looking  statements.  The factors that could cause actual results of GM,
EchoStar,  Hughes, or a combined EchoStar and Hughes to differ materially,  many
of which are beyond the control of EchoStar,  Hughes or GM include,  but are not
limited to, the following:  (1) the businesses of EchoStar and Hughes may not be
integrated   successfully   or  such   integration   may  be   more   difficult,
time-consuming or costly than expected; (2) expected benefits and synergies from
the  combination  may not be realized  within the expected time frame or at all;
(3) revenues following the transaction may be lower than expected; (4) operating
costs,  customer loss and business  disruption  including,  without  limitation,
difficulties in maintaining relationships with employees,  customers, clients or
suppliers,  may  be  greater  than  expected  following  the  transaction;   (5)
generating the incremental growth in the subscriber base of the combined company
may be more costly or difficult  than  expected;  (6) the  regulatory  approvals
required for the transaction may not be obtained on the terms expected or on the
anticipated schedule; (7) the effects of legislative and regulatory changes; (8)
an  inability to obtain  certain  retransmission  consents;  (9) an inability to
retain  necessary  authorizations  from the FCC; (10) an increase in competition
from  cable  as a  result  of  digital  cable  or  otherwise,  direct  broadcast
satellite, other satellite system operators, and other providers of subscription
television  services;  (11) the introduction of new technologies and competitors
into the subscription television business;  (12) changes in labor,  programming,
equipment and capital costs; (13) future acquisitions, strategic partnership and
divestitures;  (14) general  business and  economic  conditions;  and (15) other
risks described from time to time in periodic reports filed by EchoStar,  Hughes
or GM with the  Securities  and Exchange  Commission.  You are urged to consider
statements  that include the words "may," "will,"  "would,"  "could,"  "should,"
"believes,"    "estimates,"   "projects,"   "potential,"   "expects,"   "plans,"
"anticipates,"  "intends,"  "continues,"  "forecast," "designed," "goal," or the
negative  of  those  words  or  other  comparable  words  to  be  uncertain  and
forward-looking.  This  cautionary  statement  applies  to  all  forward-looking
statements included in this document.