You Can't Take It with You

I distinctly remember an episode of this show in which Grandpa and Mr. Pinner visit a resort hotel of some kind that had advertised a rate of $25 per day all-inclusive, but then piled on the extras to the tune of hundreds of dollars; Grandpa refused to pay and the two were sent to jail, where they bickered back and forth:

MR. PINNER: "Grandpa! I just had a brainstorm! You pay the bill, and then we write that hotel a real nasty note." GRANDPA: "Tell your brain the storm's over. You want out, you can pay your way out. But I'm not budging until I get my day in court. I don't care if I grow old in here." MR. PINNER: "You are old." GRANDPA: "My. Forty-five minutes in the slammer and some people do forget their party manners."

They eventually get out of jail by alerting the hotel's corporate owner to the scam. Why I remember this so vividly I can't fathom, but it was a nice, clean, simple morality play put on by some veteran actors -- which, apparently, no one else watched. Apparently the episode title, synopsis, and indeed the entire series, are entirely lost to history.