I haven't seen reruns of the Patty Duke Show since probably 1988 or 1989 on CBN the Christian Broadcasting Network. Or actually around that time 1989 or 1990 Nick at Nite had it on.

Anyone know if there are any markets playing reruns of this currently?

Nope. :(

Haven't seen it in a while.

Wish Nick or TVLand would bring it back even over the summer. I'm sure it would interfere with all the crummy Rosanne episodes tho.... :(

I too wish they would dump Rosanne for the Patty Duke show. For that matter The Andy Griffith Show or Night Court. I never watched that show when it was in prime time, it was so bad.