With two optical inputs, a coaxial input, and at least one analog audio input, you could have a cable box, disc player (DVD or BD), and Roku all hooked straight to the soundbar and still have one digital input free. If you wanted to tie in the TV's over-the-air tuner, that digital input could be used for the TV. If there is more than one analog input, you could use that too - but I'd probably use digital if I used anything at all. The soundbar's DAC will likely be better than the DAC you find in a typical TV.