I have a similar setup in my home theater. If you don't want to pay for a cable box (I use an antenna) , you can purchase an HDMI-to-RCA adapter at a brick-and-mortar or online electronics store, connect the one end of the HDMI cable to your TV, the other end to the adapter, connect RCA cables to the adapter at one end and the other to your receiver. Any unused input, except phono (optimized for MMC turntable output) , will work.