New Tricks (2004)

The cozy one. A Metropolitan Police squad of retired officers, led by Amanda Redman's Sandra Pullman, reinvestigates unsolved crimes the force long gave up on, and the joke is that the old-timers' memories and grudges often crack what new technology missed. Dennis Waterman, James Bolam and Alun Armstrong make a lovely bickering trio in the early years, and Waterman stayed for all twelve series. It is lighter than everything else here, more comedy-drama than thriller, which makes it the easiest to binge on a weeknight. The later series, after the original cast thinned out, are noticeably weaker.