Won't get Fooled again
That is one of the funniest episodes of the season, and highly arc-relevant too.
Seriously, stop reading ahead. Don't. If you're going to talk yourself out of watching all the best episodes because you think
you know what they'll be about (you don't), why even bother?
"The Locket" is okay, but it's not nearly as good as the Princess trilogy or Won't Get Fooled
You really should just watch everything. If there's a *really* bad one, we'll warn you. Otherwise, assume they're at least okay. (Beware of Dog is skippable but not bad.)