Conversation so far:
How is a spin-off completed?
Like many other reality TV shows, Dancing on Ice has had a number of supplementary shows.
The first was Dancing on Ice Defrosted.
Which show was most popular?
The show featured opinions from celebrity guests and past contestants as well as from Torvill and Dean, the judges, presenters and competitors.
Which spin-off was most popular?
CANNOTANSWER.
How long did it run?
CANNOTANSWER.

Question: Did any famous people appear on the spin-offs?
Self-contained rewrite: Did any famous people appear on the spin-offs?