"Coach Returns to Action", where Coach is endearingly embarrassed by his crush on his new neighbour, Nina (played by a woman in her early 30s), inexplicably, however, Diane encourages him to ask her out. Coach's crush was believable but not Diane egging him on, such a strange choice, forget father, Coach is like a grandfather, loveable, just not in that way.
I'm giving the episode 3 stars and not 1 because I love early Cheers, even when the story's shaky, the atmosphere is special, the wit is always present, and this head scratcher of an episode isn't without it's stand out moments - take for example, a pristine Diane and a dishevelled Carla rallying together to give a pep talk to Coach, in Cheers' shabby men's bathroom no less!
This is a Coach episode, and Nicholas Colasanto is wonderful, you love him as Coach despite the material the confused writers gave him (and Shelley) to work with. It's worth watching for him.
The ending of the episode has Coach pulling a sad-sack trick to have Nina take pity on him, and then what? We don't know, it isn't made clear. Again, Coach makes sense this episode, Diane encouraging him to humiliate himself, makes none.