Videotaped episodes...? Season 4?
Were other episodes of TZ video taped besides the 6 kinescope episodes of season two? ....watching the episode "incredible world of Horace Ford" from season 4 and a following episode about a cruise ship full of elderly passengers and both looked like they were videotaped as well but with more newer [at the time] video equipment...
The image was particularly sharper than filmed episodes and it looked like it was shot on backlot sets instead of actual streets