Downhill from season five
I've been watching the series from the pilot film onwards. Doing this highlights a number of issues:
1) During the second season, Burr loses much of his character traits and becomes more or less the same as Burr's previous role.
2) Each year, the set for his "apartment" changes drastically, in particular the back portion to the right of the conference table.
3) In the fourth season, the supporting characters have a lot less to do for the most part.
4) Although the fifth season starts out strong with "Priest Killer," within a few episodes the quality of the stories takes a dive. I've read that Burr put his hand more deeply into the series as time went on. Big mistake.
5) The loss of Barbara Anderson is huge. Elizabeth Baur just wasn't in her league as an actress or even in the looks/deportment department. Also, it's obvious they were hoping to bring back Anderson as Baur is missing from about half a dozen early episodes.
6) Interestingly, the Don Galloway character improves during the fifth season. He wasn't a very expressive actor, but his role increases and he does get better as the series progresses.
Am hoping things get better during the sixth year...