>i2c is not famous for distance, 3' is longer than anything I
>ever did, and i2c was designed for single-board TV designs-
>nothing outside of the same PCB.

Although there are many TVs where the IR receiver and tuner are on a 
different PCB on the front panel with a flying cable for the I2C to the main 
PCB. I wouldn't consider 3' an excessive length provided good care is taken 
with shielding.

Also on the Philips page link I posted, there is a link to pages about hubs 
and bus extenders for I2C. 

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