Originally Posted by H2O_Goalie

Signal reception is consideration #2...I wouldn't count on good reception unless you have a window seat and are able to get the antenna up/aimed out the window. IMO, from any practical/useable standpoint, on a commercial airliner you're going to have to use one of the portable units with programming saved to the hard drive. Based on my experience in cars, counting on getting a decent signal in an airliner would be unwise.