I have an original Tivo, installed almost on day one (the engineer's next call wast to install one in the Virgin shop). It's worked almost faultlessly until recent months. Every few days we get an issue where there is no sound - the only way to get it back is to switch what tiro is doing e.g. if it's a live programme with no sound then putting a recording on will fix it and vice versa. Also getting occasional lock ups that free themselves after a while. Remote is playing up too - it often does not register, or will double register i.e. the TV guide will go on and off, or two programmes be deleted instead of one. Any ideas?