It Chapter 2: 15 Insane Hidden Details You Definitely Missed
13. The TV Hint
In the first movie, we get a big hint that Pennywise has been using the TV to control the adults of Derry when the creepy kids TV show that Pennywise appeared on and which told the kids to go down into the sewer is seen playing in a number of the Losers' houses to their parents.
In the sequel, he's up to his old tricks again, or at least the TV is trying to subliminally influence the kids of Derry anyway. Because at one point we see a TV in the background and there's a Tom and Jerry episode playing that shows a huge t-bone steak being thrown out of a window accidentally in a struggle between Tom and Spike the dog.
It then floats down the side of the road and into the storm drain like Georgie's boat as Tom, Jerry and Spike leap after it. A nice little touch.