I'm not a huge fan of "Vengeance on Varos" as a whole, but I do think Sil was a fun little villain. I wish they'd bring him back on the classic series.
Do other people watch them as individual eps with gaps in between, or do people just watch them one after another in a row btw?
When I'm unemployed, I tend to have time to watch them in one go. But now that I'm working, I tend to only fit in 1 or 2 episodes at a time before bed.