If you got a Samsung Tv or Samsung DVD/free view box it's easy.
If any of the above are DNLA connect to network and use the all share function. If they aren't DNLA but still Samsung there is a HDMI adapter which connects your tab to TV.
If like many other in the UK you don't have any other Samsung equipment it's more of a struggle as the galaxy tab 2 is the 1st Samsung tab that will not connect to other manufactures of TV. It will in the states as you will see on utube but not in Blighty.
If you require a tab to HDMI TV connection pack I have some genuine Samsung ones knocking around