I used to have a couple of full Railscene cab rides on VHS:
Dover-Willesden filmed in 1986 from a Class 47 on one of the Intercity services from the long gone Dover Western Docks to either Liverpool or Manchester.
London Euston to Liverpool Lime street, filmed in 1985 on a Class 86.
Both cab rides were bought secondhand at various occasions, but the Dover-Willesden tape seemed quite knackered in places, you could hardly hear anything, and the lighting quality was pretty poor at times. You could just make out various conversations between Jeremy and the crew, but for nostalgia its a good watch. Slam door units in BR Blue, Blue/Grey and Jaffa Cake livery, quite a few stored Hastings DEMUs at Tonbridge and Sevenoaks, GW Green 47 on the southbound Dover service at Ashford, even a Blue and Grey 455 at Beckenham Junction too! The program finishes at Wilesden Junction where the 47 is detached, and runs light into the sidings, just as an 86 is watching to attach to take the train onwards.
Only watched London-Liverpool once, the tape is in much better condition, and this occasion, you can actually hear the conversations a bit better. Theres also a "live" commentary being done by the traction inspector things like "Oh look, Class 501 on the DC lines, not many of those left nowadays!"
Also, it shows Crewe station before it was rebuilt and remodelled in the mid 1980s.