Or you could just
Sell the TV in the UK and buy another one in the US.
These kind of consumer electronic devices are really cheap these days and manufacturers don't care about differing markets and making things multi-standard, as it adds costs that only 0.01% of the potential buyers care about.
I sold my 25" Sony when i moved from the UK to Austin and bought a 40" rear projection HD TV over here. I have just upgraded that to a 40" LCD monitor that cost me all of $900 over Christmas. The new TV is a monitor only as I used a Scientific Atlanta 9300 HD DVR hooked to the monitor via HDMI. The TV monitor claims to be multi standard and just for fun I put a PAL composite feed from an old AKAI VCR into the TV and it played just fine.....
After 5 years I am down to just one transformer, which is a 500W jobbie that runs the Linn turntable (via a 220AC to 12DC PSU and then a true sine DC to 220V inverter), a Beard valve pre-amp and Arcam CD player .... Seems like all the linear PSU's in these things were not designed to be multi-voltage or switchable.
- Tim