[mythtvnz] Best type of video cable for 30m run

[yuri]

Hi there,

Does anybody know what is the best way to get a video signal from,
say, a myth box (or sky decoder or DVD player) to a plasma TV or
projector about 30 metres away?
eg RCA (composite), s-video, RF (75ohm coax), DVI?

Any special sort of cable should be used for that distance?

Thanks
Yuri