We have that channel but I've never watched The Joey Bishop Show. You're probably right about the early version, based on the dvd(s) I've seen for sale. I haven't found anything from the talk show period.
The Johnny Carson Show is also on Antenna TV so I'll be on the lookout for the Poco appearance. But it may be just the interview and stand-up comedy segments.
(p.s. I hope you're feeling better by now)