This review is from: Lois and Clark: The New Adventures of Superman - The Complete Season 2 [DVD]  (DVD)
Season 1 was wonderful but season 2 was awful. I gave the DVD away. No more Lex or Cat. Season 2 was just so corny. It lacked the sparkle of season 1, and reminded me of the old 1960's Batman. The stories were badly thought-through and the parade of 1990's TV celebs had the smell of desperation.
I suspect that the loss of Lex was the main weakness of season 2; the actor had charm, vigour and panache. Clark & Lois alone failed to carry the show...
Also, why replace Jimmy? I heard that it was because the original Jimmy looked vaguely like Dean Cain. Poor reason.