Oh yeah, Falk is great.
What are the bad ones for you ? I've heard Last Salute to Commodore from 70s and No Time To Die from the new bunch are exceptionally bad (truth be told I've skipped them)
If I had to choose one Grand Deceptions is probably my least favourite - it felt like whole lot of nothing and barely could hold my attention
The weirdest one is Undercover - it felt like an episode of completely different show with Columbo thrown in
I really liked the final one - Columbo Likes The Nightlife. Not because mystery was exceptionally great or killers were all that charismatic. But it's interesting to see such a drastic contrast between this one and 70s Columbo. It offers much bleaker, nihilistic view of the world. So much have changed in these 35 years - world is a totally different place now and Columbo feels like a relic of a different era. You can't even be fully satisfied with Columbo catching them - chances are they would get executed by mafia long before they reach court room. So melancholic, I love it. Even though it wasn't supposed to, I think it finished the show on a nice if somewhat dark note