As long as they are given some cash, they can do whatever they want with it, including supporting their habits, and there is nothing anyone can do about it. No one is tracking what they buy.
There's no reason a $250 TV would even generate a second look if purchased with an EBT card. It's not on any prohibited item list that I can find.
They can even easily change the SNAP part of their benefits into cash, and they do. They can turn their whole benefit amount into cash.
This has never been a secret.
You take your EBT card and you buy food for a third party. That third party gives you cash for the food.
You can go in and buy steaks, and then sell the steaks for 50 or 75 cents on the dollar.
And that is far from the only way to turn the SNAP benefits into cash.
It's a cottage industry and has been forever. It was going on when they had actual food stamps.
It's no secret that a good chunk of welfare does not go for supporting families.