Hi all. We are new to caravanning and have bought a Swift Charisma 620 2007. We plan to use hook ups most of the time i fact all of the time. I wonder if we can use our 26" LCD Samsung Television in the van. I know it's big but it's got freeview built in and we have the Status 530 directional antenna fitted on the van. The television uses 120w. Is this ok for hook up at a site.