My 5 In Order Would Be:
1. Classic Hawaii Five-O 🌊 (1968-1980) obviously. 12 mostly strong seasons. McGarrett an iconic character plus beautiful Hawaii. Writing was creative and high level stuff. Big fan of Draw Me A Killer, East Wind, Ill Wind, Highest Castle, Deepest Grave, Hookman, King Of The Hill, The Vashon Trilogy. Yesterday Died..., etc. I'm glad they made 11 and 12 seasons although it was showing some episode or writing fatigue. It probably was difficult coming up with some new ideas after 240 episodes.

2. Kojak-I've been watching these Kojak episodes and they are very well-written. McNeil-Kojak-Crocker are a strong 3 plus Stavros and Sapperstein and others. I was born in the mid-70's so watching these episodes are very interesting. Would have loved to see Kojak go 7 or 8 years. I only remember 5 seasons then it ended. Kojak is a larger than life figure. Crocker is similar to Danno. He has plenty of utility and good to have on your staff.

3. Streets Of San Francisco. This is another excellent 70's detective series. Keller and Stone have a good chemistry. The veteran Mike Stone teaching the young Berkeley graduate 🎓 Steve Keller a few things. They have a few standout episodes. The Takers easily is #1. It is outstanding in every way possible. Most Likely To Succeed would be in my Top 5. The John Davidson one Mask Of Death might be #2. Brilliant episode. It's mostly Keller and Stone. They might have a few detectives around or lab person. I think that's why I have Hawaii Five-O and Kojak a little bit higher. A few more detectives to have doing things and see how they operate.

4. Columbo. I really do love Columbo. My FAV Columbo episode is when he goes to London. Honor Blackman and Richard Baseheart are the perpetrators. Columbo is similar to Cannon. They are solo investigators but have help sometimes. If you love Columbo, then you see plenty of him during the 90 minutes. The drawback is if you get tired of seeing him say, "Just one more thing"...or him with the cigar. That can be annoying to some his mannerisms. I also like the Dick Van Dyke Columbo episode. I think it's called Negative Reaction.

5. The Rockford Files. Have to put something last. James Garner is one of the actors that was successful in both Films and TV. Honestly, I can't remember any titles of the episodes and the villains are weaker and not as memorable as Classic Hawaii Five-O. It's mostly Jim Rockford although his Father and Angel appear in the episode. I've seen a few with Gretchen Corbett. I wonder if Seinfeld was a Rockford fan. His comedy reminds me some when Rockford starts talking and he's in these strange situations.