I kept putting this off all week, dreading The Reality Show Episode. On rewatch...it's silly and dated, but I didn't actually mind it.
Oddly prescient for them to feature game shows that are still around 20 years later.
The episode itself is pretty thin, though: the Doctor, Rose, and Jack get separated into different reality/game shows, discover that losers get killed, and find a way to esacape. The highlights are Eccleston and Piper's performances - they both do terrific work here, selling the emotions that they go through quite well.
They probably could have done more with the fact that Rose had to play that entire "Weakest Link" episode, sending quite a few people to their deaths.
Jack is...present. He seems somewhat stilted again, much as he did in "The Empty Child."
The guest cast all turn in good performances, which help elevate the overall episode.
I can't decide if setting the episode on Satellite 5 100 years later was simply an excuse to reuse the sets (which I likely would not have recognized anyway), but confronting the Doctor with the revelation that he's the cause of this divergence in history works pretty well.
And, of course, the whole thing is a setup for the full-on return of the Daleks in the big finale. The weight of their reveal is really felt, with the heavy lifting having been done back in "Dalek".
I don't know, this feels like a pretty scattered collection of thoughts, but...it's that kind of episode.