Medical Police is an Underrated Show, and since Netflix never announced its cancellation, I hope it gets a late release Season 2; like Locke & Key did. Its also a Spin-Off of the Adult Swim series: Children's Hospital. If you haven't watch Medical Police I highly recommend it if you are into either Action and/or Comedy, and this is both.
Angie Tribeca is like a modern day Naked Gun (Leslie Nielsen) in T.V. series format. Its 4 seasons of T.V. greatness and is another great Action/Comedy series.
Eagleheart is like a homerun of every ridiculous comedy movie Chris Elliott has ever been in. Its 3 seasons of crazy fun stories & plots, and lots of stories & plots at that; in both quantity & quality for an Action/Comedy series.
NTSF: SD: SUV:: is 4 seasons (4th Season was done via webisodes) of Action & Comedy greatness. Its 100% worth your time and is probably the 2nd most underrated series on this list after Medical Police, but is an even greater series.
MacGruber movie and series are parodies of MaCGyver, and Will Forte as the star of this will make you laugh more in this; then he's ever had in anything he has ever been in, with plenty of action to boot.
For an Action Adventure Comedy; the Venture Brothers is a great series. Venture Brothers isn't as good as Rick & Morty but it comes close enough, and it's 7 Seasons and a Movie (sorry Abed from Community), and it took a Pandemic to Cancel this Series. Its ashame since Season 8 was already finish in its script and ready to be animated. If only Netflix or Hulu or Amazon Prime would pick it up.
Its a little sad we aren't getting anymore new episodes of almost any of these series. At least MacGruber is new, ironically enough.