[Seaplaner]

McLean Stevenson, Harry Morgan, Larry Linville, and Wayne Rogers are all long gone. Now, David Ogden Stiers checks out, but that smug jackass Alan Alda is still with us. Is there no justice?

First, and to the point of the thread, David Odgen Stiers was a good actor. He had presence, and played his character convincingly.

And now to the Alan Alda issue.

Alda was and is a remarkably poor actor. Try this, watch a MASH episode, and turn off the sound. Watch Alda. Wooden, robot-like, he is not Hawkeye, he is Alan, he convinces few, if anyone.

Then, turn UP the sound, and close your eyes. Listen to Aldas repeating of his dialog. You have seen people who are not accustomed to public speaking who read ... every ... little ... word ... one ... at ... a time. This is Alda's delivery, sped up slightly, but he's repeating dialog, not acting.

[Captain Peter Blood]

I think the only movie I really liked that Alda was in was in cute little comedy called “Same time next Year”, and even in that he could be smug and annoying.

[a fool in paradise]

Alan Alda grew up in burlesque. Subtly was not found in the burlesque house.

Behind The Burly Q (trailer)
https://www.youtube.com/watch?v=189Zme-Ioh8