Stevenson could see the writing on the wall about M*A*S*H becoming the voice of Alan Alda so he chose not to participate in the show moving from an ensemble to one with a lead (Alda) and everybody else in support roles. Since nobody else on the show really had a big role after M*A*S*H, Stevenson just short-circuited the process but also lost out on a chunk of residuals.
It seems like Alda got more chickified with each season.
It seems like Alda got more chickified with each season.