[QUOTE=tonypct;7822615]Very true! I learned this the hard way. On a recent JFK-SEA flight, I thought I was smart and turned off my Tv while on the tarmac. The guy next to me did the same thing. Well, once up in the air, neither one of our TVs worked. Lesson learned!
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I would be very surprised if turning the TV on while on the ground caused the malfunction in the air - it was probably just a coincidence. If it wasn’t, the system’s designers and implementers should be shot for such a stupid situation.