Dolby Vision was launched at CES at the start of the year, promising to deliver another leap in TV picture performance, thanks to an expanded colour palette, enhanced dynamic range, and dramatically increased contrast ratio. Now we have the first Dolby Vision televisions - at least in the US. Vizio is the brand responsible, a US consumer electronics company that's known over the pond for its affordable 4K TVs. The new Dolby TV tech will be on the Vizio Reference Series range (pictured, above), which features a 65in and a 120in 4K Ultra HD model (and is not so affordable).