NTL launched TV Drive, its high-definition television (HDTV) and Digital Video Recorder (PVR) service in Glasgow and Teesside on 16 November 2006. The service relied on the service of the same name offered in NTL's Telewest areas. The service used a new PVR set-top-box, with three tuners and a 160GB hard disk for up to 80 hours recording. The presence of three tuners meant that the TV Drive could record two channels at the same time while watching a third. This contrasts with most other PVR systems such as Sky+, which can only have two tuners.