I don't mind "The Royale." There are worse season two episodes (ahem...), but "The Royale" was kind of weird enough to be at worst merely amusing, kind of like a Twilight Zone episode like aforementioned.
If you want embarrassing, I rewatched "Sub Rosa" the other day and found myself enjoying it more than I had expected, especially some of the performances. Yeah, I just said something nice about "Sub Rosa," I know...
I should do that. Rewatch episodes that I know I hate & see if after enough time away I can find anything enjoyable about them