This episode was no doubt the one most thoroughly rewritten in the editing room. It's not so much that things were cut out. It's more an issue of pacing. In the edit room showrunner Tim Doyle and editor Mike Mayhew found that the A-story (Mike and Peggy misunderstanding Timmy's hobby) had a lot more beats than the B-story (Frank getting involved with Joey at the retirement home). Doyle wanted to break up these two stories into shorter bites and bring both stories to climax at the same time. This involved a massive restructuring of events in the story. If the you compare the final cut of the episode to the shooting draft of the script you can see that the scenes have been radically rearranged.