I hooked up a 3025 in my house. The 3025 has two A/V inputs. My Laser disk player has 2 A/V outputs so one went to the modulator and the other to my receiver. Laser disk is set to ch. 110. Now the VCR had only one output so I got a 1 in 3 out A/V convertor at Radio Shack. Then connected one to the Receiver the other to the Modulator and set it to channel 119. Cable from the street goes to the modulator then from the modulator to each TV.
After you get that working you'll need a IR repeater system to control the DVD and VCR from the rooms.