[WillPS]

Some of the Kaye Adams episodes of The People Versus were shown for the first time on Challenge too - I don't even think it got a particularly good slot even, it was clearly something Celador/Sony bundled in with some Classic Millionaire.

I'm sure there was some weirdness with the Mark Curry era Catchphrase too - from memory there was one episode which was eventually aired in 2005 as a last minute replacement for some sporting event which was cancelled, and another which wasn't aired until Challenge repeated the series for the first time over a decade later.

Possibly Wheel of Fortune too - although I might be misremembering that one - there's definitely some early ones which had only ever been shown by Scottish, possibly some Hendy ones never had an ITV airing at all?