In case it's of interest, I note that there is a Bush TV33 television up for sale (lot 566) at
Mitchell's Auction in Cockermouth this Thursday, estimated at £15-£25, though that may bear no relationship to the final hammer price. There is also a GEC televison at lot 634 (next page, same estimate).
Although online bidding is available at these sales, there is an extra 4.95%+VAT surcharge for this on top of the 20%+VAT premium. VAT is
not charged on the hammer price. It is probably better to leave a bid by telephone to avoid the surcharge. I believe live telephone bidding is also available, though I'm not sure whether there is a surcharge for this.