EU mains voltages are all, in the main, normallised at 230 volts nowadays.
http://en.wikipedia.org/wiki/Mains_electricity_by_country
The Euro 2 pin mains plug can be fitted into an adaptor for £2 or so.
http://uk.farnell.com/power-connections/cp1b-black/plug-converter-euro-quickfit-black/dp/1278795
All country changes can be done via the service menu in the Avant.
If you are converted to digital TV in your area, you will of course require a Freeview box or Sky digital or similar.
It will probably cost you more to pick it up and transport it home than you could buy one for locally. In general, Avants are worth very little in the UK!!!!
Don't for get the remote as they are worth about the same as the TV!!!!