I see, this is a speculative enquiry.
HDMI
can be driven up to 10m, but only with very expensive high-quality cable and I do not recommend it. of course the Humax only has the one HDMI output, so if you were going to do it that way you would be constantly swapping cables or would need a switch box - also not recommended for driving long distances. The limit for HDMI with inexpensive cables is about 10 feet.
4291 uses a 15m phono cable to send a composite analogue signal to a remote TV with acceptable results (StDef). This can be connected to the phono outputs of the Humax at the same time as the HDMI to the local TV. This kind of thing:
eBay (click)
Personally I use a HD-FOX to access the HDR-FOX recordings from across the home network.