wa8yxm and BigV are right. Get a 600 watt pure sine wave inverter. I installed the Xantrex SW600 as mentioned above. Try to mount 3'-5' away from batteries. I went to wally's and bought two 2 gauge starter cables and then went to a stereo install shop and bought an inline 80 amp fuse. Mount the fuse on the positive wire as close to the battery post as possible. I mounted the inverter under the dash (behind the firewall) and use a HD extension cord if needed. You will find yourself using the inverter for more then just the TV and DVD so it is a good idea to get a little bigger unit then you think you need. If you get anything over 600 watts expect it to draw more amps from your battery bank to operate the inverter.
'98 Gulf Stream Sunsport 325, 7.5L Banks Power Pack, Koni FSD's, Air Bags, ReadyBrute Elite,
2000 Honda Accord