The following 3 methods will be nice for you to enjoy watching London 2012 Olympic Games.
1. London Olympics Live Streaming on YouTube
Youtube has official live streaming of the all Olympic games by IOC (International Olympic Committee). You can watch live streaming of the games in more than 60 countries including USA, UK, India. All you need is a browser on any device including PC/Mac, iPad, Android Tablets like Nexus 7, iPhone, Android phones like Galaxy S3 etc.
2. TVCatchup.com lets you watch live free-to-air UK television on your computer, phone or games console. Versions of the site optimised for iPad and iPhone are available at ipad.tvcatchup.com and iphone.tvcatchup.com.
Head to TVCatchup.com and click the Sign Up button to begin. You'll need to enter a username, email address and password, then click Submit.
Once logged in, you're presented with a channel list. The London 2012 Olympic Games will be broadcast by the BBC; choose the correct channel for the particular event you want to watch live online. You can also change the stream quality, which is useful if you don't have a particularly fast broadband connection.
If this is the first time you've used TVCatchup, it will prompt you to update your profile with your gender, date of birth and occupation before you can begin watching live TV. On the following screen you will also need to select your region preference, then click Update Region.
TVCatchup kicks off with an ad or two, then immediately begins streaming your chosen TV channel. Sit back, relax, and enjoy the sport.
3. iPlayer is the BBC's free catch-up TV service. Programmes are available for seven days following their transmission, but note that the service's Download and Series Record features are not usually available for sporting events, such as the London 2012 Olympic Games.
If the sporting event you're after isn't featured in the top panel, choose BBC One or BBC Two in the TV Channels section to the bottom left. The following screen will show the programme listings for the past seven days; you can also view today's guide and listings for the next two days. Click the date on which the event was broadcast in the timeline at the top of the screen.
Scroll down to find and select the event in the list. Click the arrow in the video frame to begin playback. Clicking again on the preview window reveals options to pause, fast-forward and rewind the action, turn on subtitles, and watch the event full-screen or in a pop-out window.