The warning "Hey, let's be careful out there!" is heard in almost every episode of which U.S. TV series?
Correct answer: Hill Street Blues

Player AutumnWind33
I loved that show.

Phiend99
My cousin, an LA police officer, said it was very realistic in it's portrayal of how things really were conducted at most precincts.

Lucy CPH4
I don't normally like or watch "Cop shows", but this is one I wouldn't miss! An all-time favorite.

Player #2939617
Sweet Senior, one of my favorites

SaltyWillOWisp96651
Player AutumnWind33, Me too.

Lady butterfly
That was a great show

LillySparrow
We watched that every week!

toothless beachrat
I used to really enjoy this show, it seemed to be very realistic. I had a weekly backgammon match for money as this, Cosby and Michael J. Fox sitcom about a family (forget the name) would play.