I'm guilty of having 2 televisions in a same room. 
Indeed, it helps when there is a dispute.
The only reason I have the 2 television is because I use one for the VideoPhone and the other television for regular channel programs. When I'm not using the VP, I usually hook it up to my DVD player and let the kids watch their favorite animated movies while I watch the other television, and things like that.
It can be a bit weird at first. It was to me too but after a while, I pretty much got used to it and now I like having 2 televisions in the same room.
