Can't find input jacks anywhere on the tv!

We were given an RCA Guide Plus Gold tv and the only input in the back is for the cable connection. There are no other openings for DVD. Any suggestions on where else to check?

if there no where on the tv then you need a RF modulator to connect the DVD player to the tv. you plug the RCA wires on the dvd player into the back of the RF modulator. you connect the cable wire coming in from the wall into the jack on the back that says cable in. then connect another cable wire into the jack that says out to tv and connect the other end to the TV. plug everything in and your all set. go to any electronics store like radioshack best buy etc and pick one up.