I use the TV when a) the kids are too riled up and need a reset or b) everyone is sick and needs to relax for a bit. I use it for about 30 minutes MAX.

Everyone has different views on TV. I would talk to the child's parents and see what they think or if they have any other suggestions.

I'm afraid if you keep this up the child will expect it/demand it when they are better. That is a very hard habit to break with really little ones.