He has also appeared in at least two TV commercials. Both of these were in the small computer industry, first for Atari and later, with the rest of the M*A*S*H cast, for IBM's PS/2 product line with MicroChannel architecture.
His father, Robert Alda, was a successful actor.
Alan Alda is the host of the TV show Scientific American Frontiers.
Because of his prominent part in the enormous success of M*A*S*H, Alda had a platform to speak out on political topics, and has been a strong and vocal supporter of equal rights for women. As such, he has been something of a bogeyman for some political conservatives.