My tv recently went out and we moved one from another room into my room so I can watch tv. We though lost the remote to it and it is kind of a older tv. It is a bigscreen tv and I think HD or LD. But without a remote I got to fiddle with the tv to turn the volume up or down and stuff like that. Would a universal remote work and is it easy to program it even if you don't know the exact model of the tv or what year it came from or the serial number, if tv's even have serial numbers? Not a tech guy so if you could explain it simply that would be great.