Found this in the Telegraph about BBC salaries:
As for Alexander Armstrong? The BBC pays independent production companies between £20,000 and £130,000 per episode for a daytime entertainment show. On a long running show like Pointless, there may be deals either way, one producer explains. “If you’ve got a long lasting contract for lots of episodes over a number of years that’s valuable security in these troubled times so the Corporation is going to be pushing for a bulk discount while the indie is pushing for an increase as the show is vital to daytime,” he says.
He speculates that Richard Osman and Armstrong would be on £20,000 per episode, possibly less. Osman has reduced his appearances but was involved in devising the format so would earn from overseas sales and production fees. With recent seasons running to 55 episodes, however, £20,000 a pop means trousering a cool £1.1 million for Armstrong.