Make sure that you do not pull the cable outlets to where the TV is going to hang on the wall. HD TVs 99.9% of the time will need a converter box of some sort (.01% they can use a cable card). So I wind up having to charge the customer to rewire to the location of where the equipment is going. This normally pisses the customer off that they need to spend more on something that should have been done right the first time. Like Marty said the electricians usually do a great job at F-ing up all the pre-wires. They still have some here in the NO area that daisy chain the cable outlets.