Just got this from Virgin Media:
Great news, we've launched our new Virgin Media TV powered by TiVo 500GB box early for existing customers. From today M+, L and XL TV customers will be able to get their hands on Virgin Media's next-generation entertainment service, packing all of the same power and great functionality of its bigger brother but for just £49.95 plus standard installation charges.
Existing XL TV customers can enjoy the TiVo service for an additional £3 per month and now M+ and L TV customers will be able to experience the power of TiVo for an additional £8 per month, all they need to do is call to upgrade on 0845 650 7777.
We'll be making our TiVo 500GB box available for new customers this summer, watch out for more news!