what i liked- the ending where it was revealed homer had been in the coma for weeks, the beginning with the pranks homer pulled on bart, and... that's about it.
i don't hate clip shows like a lot of people do. sure, they're time-filler and are only made to pass on like an actual episode, but the parts that weren't clips from previous episodes, were really nice and humorous, so even if this is a clip show, i liked it for what it was. B+/A- or so as my final grade. probably one of s4's worsts, but considering it's a clip show, that's not really an insult or anything