would not bother, i have one, and you can only record one channel and watch another, you also cannot rewind live tv (like if the channel has been left on a channel for a hour and you come in and have missed the start of a program.) like some boxes, say you left in on bbc1 and you come in, yoiu can rewind tv upto 2 hours.
i will spend say 20-40 pounds more and get a beter box.