"No Time to Die" I've legit watched only once, and I still couldn't believe this is actually part of the Columbo catalog. "Murder in Malibu" & "Strange Bedfellows" are also episodes towards the very bottom of my viewed list. As for the ABC ones I've watched the most, "Columbo Goes to College" is probably at the top of viewed along with "Columbo Cries Wolf." The classic series, I'd say "Short Fuse" is least viewed, while "Now You See Him" is the most.