I'd like to see some Cardiff Valleys cab rides, also Liverpool Street-Cambridge, Birmingham-Leicester-Peterborough and Preston- Copy Pit- Leeds, plus the Durham Coast and the Portsmouth - Bath line. Some of these are available on other companies' productions, but the Kingfisher cab rides always got on my nerves because I found the presenter's giggly voice and conversation too irritating to listen to. His inane questions showed that he hadn't done his research before filming. Video 125 can bombard you with more historical detail than some people want, but nowadays you can switch it off. And they did a very good offer a while ago, allowing you to replace old VHS tapes with DVD equivalents at a very low price just by returning the VHS jackets.
I once bought a tape (not Video 125) of the Calder valley line but threw it away in disgust after I heard it confuse Castleton near Rochdale with Castleton in the Hope valley.