Yes, Dave there is an episode with basketball (Episode 118- "The Firehouse Quintet"). The boys are playing in the finals of the fireman's tournament. Unfortunately, this is the only episode of the entire series that I do not have. Apparently, TV-Land's tape of this episode was ruined and they were unable to air it. I have asked for this episode before, in case anyone else had taped it from some other tv station, but it seems like nobody else has it either.
If anyone out there does have it, I'm willing to pay for the tape and postage, for a copy of it.
I also can't think of any other ep. that involved basketball.