I saw all 30 recently and they were awful.
(Time Tunnel & Lost in Space were Both produced and conceived by Irwin Allen. They're almost like the same show... Oh and Land of the Giants ditto.
The unintentionally most hilarious bit was in the very last episode, they have the same bat time, same bat channel shite:NEXT WEEK ON TIME TUNNEL... And they give a preview to the first episode ever, like the series is caught in a huge frakking temporal loop.
Time Tunnel makes VoyagerS
look like it was produced by Stephen Bocho.