There is also a digitally colorized version of Dinner for One from 1999 (possibly geo-fenced):

https://www.ardmediathek.de/video/comedy-und-satire/dinner-f...

It is rarely broadcasted in Germany, however, because people just like the original black and white version better and vocally rejected the colorized version when it was first aired.

There were also plans to record a live version in color in 1968, but Freddy Frinton sadly passed away before it was realized.