Quote Originally Posted by TimesOwn View Post
Ahh, now I understand why the RF output from one of my TiVo's has no sound, (Loud hum actually)
On an unrelated note I was playing with a digital STB last night after giving it some TLC (dead caps in the power supply) and this model has RF output capability. I happened to change the output format from PAL-B/G to PAL-I and got the same as you: perfect picture but loud hum on the sound. So yes, there is a difference in PAL standards.