I apologize for the poor quality. For the record, in the episode, Doctor Boyer (played by David Ackroyd) develops a staph infection in his leg and is admitted to the hospital. He winds up in his own ward, under the supervision of a young intern, Doctor Caldwell (played by Tom Isbell), who is overeager to say the least. In the final scene, Potter gives Doctor Caldwell the good news that Boyer’s infection has cleared up, only to discover that Boyer has disappeared. If you’re not familiar with AfterMASH, you can read all about it here.

When the show returned for its second season on September 23rd, 1984, a new, jazzier theme song and a reworked version of the opening credits were introduced:

Beginning with the October 9th, 1984, the opening credits were changed again, although the new theme song was retained:

I’ve also updated my article on AfterMASH to include all three versions.

March 17th, 1975 – Cover, Alan Alda
March 13th, 1979 – Cover, Loretta Swit (Unavailable)
April 9th, 1979 – Article, Mike Farrell
November 17th, 1980 – Article, Filming 200th episode (Unavailable)
June 15th, 1981 – Cover, Alan Alda
August 21st, 1981 – Article, David Ogden Stiers
March 7th, 1983 – Article, End of M*A*S*H (Unavailable)
May 16th, 1983 – Article, Jamie Farr
October 24th, 1983 – Cover, Cast of AfterMASH
August 9th, 1999 – Article, Gary Burghoff
April 24th, 2000 – Obituary, Larry Linville

I’m not quite sure when the second version was first used. I do know it appeared as early as the sixth episode (“Night Shift”), which was broadcast on October 24th, 1983.