Jimmy and Donna are in a continual amorous mood and at every turn, someone manages to walk in on them while they're ""getting close."" Afraid they've scarred Wendy for good from this experience, they attempt to broach the subject of the birds and the bees but realize that she's still too young to even care to hear it. Jimmy makes his first appearance on-site as the building contractor at Alex Trebek's house. It seems our celebrity client has some pretty outrageous ideas for his home and it's up to Jimmy and Sabrina, his architect, to try and make them happen. A woman named Mel Hanlon, who used to live in what is now Jimmy and Donna's house and who also happens to be an ex-therapist, arrives on Donna's doorstep in the hopes of taking a nostalgic look at her old home. A friendship strikes up between the two and it appears we may see Mel more in the future.

• Chris Thompson

• Kaley Cuoco
• Stephen Root
• Betty White