Welcome to the forum Nancy... Our 21 foot NT came with a 19" Jenson flat screen hdtv and it is good for us. I do think when the time comes we will put in a larger one, maybe a 26". You can actually use most anything you want, catch a sale at walmart or go to sams or costco and pick out what suits your fancy and budget. You might have to buy some hardware to mount it on a wall, but be sure you get one that has the connections on the back that will suit whatever other electronic devices that are in the trailer like a cd or dvd player. Congrats and good luck, let us know what you end up doing.