(PVR3) are manufactured by Altech UEC, Pace, Amstrad and Thomson. Launched in September 2005 as standard Sky+ box, the box has an average of forty hours recording time. The box has a 160 GB hard drive installed, however half of this (80 GB) is reserved for use by the Sky Anytime TV service. The box is known internally at Sky as a PVR3 or Sky+ 80/80. Sky+ 160 GB (discontinued) – Referred to as Sky+160, this box was manufactured by Thomson, with the model number DSI6210, and was available only in the UK. Launched in the autumn of 2004 as Premium Sky+ box and a cost of £399, it has an average of eighty hours recording time. The box has a 160 GB hard drive installed, and all 160 GB is available for user recordings. The Sky Anytime TV service is not available on this box. The Sky+160 box was discontinued during the first quarter of 2006. Sky+ 250 GB Sky+ (HD) 250 GB – Made by different companies, including Pace, Samsung and Amstrad. Formerly with a smaller hard drive (160 GB). Presumably upgraded with the increasing numbers of HD channels. Still containing dual tuners and the Sky Anytime service, although this does not use personal recording space as the hard drive is in fact 500GB with a separate 250GB partition dedicated to the Anytime service. Sky+ (HD) 1 TB (discontinued) – The same as the smaller hard-drive HD box, however a four-times larger hard drive. Similar in appearance however silver parts are replaced with black making a much slicker looking box. Sky+ (HD) 2 TB – The same as the smaller hard-drive HD box, replacing the 1TB version however an eight-times larger hard drive. Similar in appearance however silver parts are replaced with black making a much slicker looking box. Although the different generations of the Sky+ box look similar, they have minor external differences (viewing card positions etc.) and significant internal differences. By December 2005, Sky+ 80 GB boxes manufactured by Pace, Amstrad and Thomson were being installed. Many people have reported various problems with the different boxes. A persistent complaint is that early Amstrad 80 GB models are noisy in operation. Amstrad was bought out by Sky in 2007, and decided to bring in its satellite receiver development and manufacturing in-house. Sky+ remote A typical Sky+ remote control is similar to a typical Sky remote, but provides