Greetings, I have an older tv, a Loews Calida 2323 MB and was using a KD-ctca3 converter to connect my cable box yo my tv, which has inputs for both vga and rgb to receive 10801 he. I note would like to connect a Roku or similar device which requires hdmi output. How do I get HDMI output into my tv? Can I get an adapter that would allow me to connect to either the rgb or the vga input of the ctca3? And how would I handle audio? Do i need a converter to turn HDMI signal into rgb plus audio outs ? Arthur.