Apple repair and upgrade shop MacService has announced its new 320GB Apple TV Upgrade service. According to the company, the larger capacity drive can hold up to 400 hrs of video, 72,000 songs or 200,000 pictures. To have their Apple TV upgraded, users must send their device out in a MacService-provided custom shipping container using a pre-paid UPS shipping label. Once received, MacService installs the new 320GB hard drive and transfers the data from the old drive, which is then returned to the customer along with the newly upgraded Apple TV. The 320GB drives are brand new and come with a 3 year warranty, and MacService promises to complete all work within 24 hours of the Apple TV’s arrival. MacService’s 320GB Apple TV Upgrade service is available now and costs $295.