Which episode, where...

... Howard Hesseman, as Craig Plager, is brought in as a new, gay, member of the therapy group, when they run out of topics (but I don’t see a matching episode in his IMDB TBNS credits, or, indeed, in the credits for any of the therapy group actors); Bob and Emily prepare for a glee club reunion, for which Bob wears a very ruffled shirt (or “blouse” as Howard Borden calls it); Emily finds Bob’s old “little black book”; Jerry makes a balloon spider. Sy Rosen was the story consultant (but I couldn’t find the episode in his TBNS credits); Patchett and Tarses were the episode producers (likewise). The episode was in the TV-Land four-hour marathon on 9/10/07.

I can’t identify it in the IMDB list. Anyone have the episode name?