Bit of an odd one:
https://www.tvmaze.com/shows/50266/extreme-nightmare-tenants
The show has an official website set up with this name and the on-demand service My5 also lists the show under this name too. However when watching the show the title that appears is actually Nightmare Tennants, Slum Landlords. This is already a Channel 5 show and the episodes can be found here:
https://www.tvmaze.com/shows/13399/nightmare-tenants-slum-landlords
Watching the show, the stories featured don't appear to be brand new, however the episodes are edited together from clips of the original episode and Nicky Campbell narrates the new version of this show. I don't know if these clips are extended versions of the original version or not as I never watched the original show but I know Nicky Campbell wasn't involved with the original series and he does narrate these new episodes throughout the entire episodes.