iTunes

As any Black Sabbath fan knows, some of the band's earliest releases have stood the test of time. Finally, the first eight Black Sabbath albums spanning from 1970-1978 are available on the iTunes store. The albums have been mastered for iTunes, with Apple getting an exclusive distribution agreement for a limited time.

The albums, which run $9.99 include the self-titled Black Sabbath, Paranoid, Master of Reality, Black Sabbath Vol. 4, Sabbath Bloody Sabbath, Sabotage, Technical Ecstasy, and Never Say Die! as well as related compilations. For those who already own the albums on LP or cassette, here's your chance to pay for them again on the latest recording medium.

Sending an app gift to friends and family who use iOS has never been easier. When it comes to the holiday season, sending someone an app is convenient and doesn't waste a lick of wrapping paper. Apps can be gifted using the App Store on an iPhone, iPad or iPod touch, or directly from iTunes on a computer.

To gift an app from the App Store, find the app you wish to deliver as a gift using the browse or search functions. Once on the app details screen, tap the share box in the upper right corner. When the menu pops up at the bottom of the screen, touch the Gift button.

The Home Sharing feature in iTunes makes it possible to stream an iTunes library directly from a computer to an iPhone, iPad or iPod touch. As long as the iOS device is connected to the same Wi-Fi network as the computer, large iTunes collections can be accessed directly from iOS, without syncing or taking up storage space. It only takes a few steps to set up Home Sharing and start streaming music and video.

First, open iTunes on the computer and navigate to File -> Home Sharing -> Turn on Home Sharing. Older versions of iTunes (10.2 to 10.7) have the Turn on Home Sharing option under the Advanced menu. Enter your Apple ID and password to start sharing the iTunes library. iTunes media on multiple computers can be shared over the same Wi-Fi network.

Nine Doctor Who episodes which were previously thought destroyed are now exclusively available on iTunes. The episodes "Web of Fear" and Patrick Troughton's six-part story "The Enemy of the World" were recently discovered at a TV station in Nigeria, and have been digitally remastered by the BBC.

iTunes users can now download all six episodes of "The Web of Fear" (episode three is still missing, but has been reconstructed using still image ‘telesnaps’ and original audio) and "The Enemy of the World" for $10, or for $2 per episode. Doctor Who fans can also pre-order the missing episodes on DVD for £13.99 from the BBC's online store. The limited edition DVDs will be available in early 2014.

This is the first time these episodes have been available to view in over 40 years.