More and more is coming out. There are some cable channels like ESPN 3D if you are a sports fan. Discovery Channels if you like to watch documentaries.
More and more movies are being made in 3D now and YouTube also has 3D contents available now. Some 3D TVs have 2D to 3D conversion that allows you to watch basically anything in 3D (sports, any 2D movie, discovery channel, etc). The quality is quite good. There's also a lot of growth in devices that let you create your own 3D content. Camcorders and video binoculars are good examples. With both of these you can watch your own content on your 3D TV.
There are a lot of 3D DVDs available. Broadcast 3D is becoming more common and there are also on line sources for 3D content as well. 3D content will become more common as the market penetration increases in the next year or two.
Number of 3D contents is increasing as 3D TV becomes more popular but it's true that there could be more. Some 3D TVs have 2D to 3D conversion feature which lets you watch any 2D content in 3D.
3D content is becoming more common but many people consider a 3D purchase now to be a little too early. In the coming months and years, 3D content will be more available and prices will fall significantly. Keep watching prices and buy when they reach your budget.
3D content is becoming more common but in 2012, is still fairly limited. Expect more content to be available in the future and also expect more 3D channels to be launched. For the time being, you will need to research the 3D content available and decide if 3D is the right investment for you.
When you are using your TV in 2D mode like net surfing or watching content in 2D, then you don't need 3D glasses. When you watch 3D content then of course you have to wear 3D glasses.
Yes, it is possible. Not all the content shown from a 3D TV will require you to utilize 3D glasses, and you can watch normal programs from 3D TVs. The picture will not be distorted unless you're watching a 3D film that requires special 3D glasses.
Current 3D content is available on broadcast channels and on Bluray discs. The content is HD regardless of the source so there will be no discernible difference between Bluray and broadcast 3D signals.
Some televisions have a 2D to 3D conversion facility. It simulates 3D from 2D content and despite claims from LG, it is NOT as good as genuine 3D content. If it was that good, production companies wouldn't be generating 3D content, they would just be using LG televisions! Treat any 3D simulation feature as a bit of bonus. It is never a real substitute for genuine content.
There are a number of 3D televisions that claim to convert 2D into 3D. All such features are nothing more than a simulation and none are as effective as true 3D content. Don't expect the simulation to be great and then you won't be disappointed.
Its available on DVD and 3D versions
Free or cheap 3D television content is available in any locations that offer free or cheap 2D content. Don't expect the quality to be great. After all, you get what you pay for.