If you are a Vodafone customer you may have found that you are not able to stream some sites. One of these being a really nasty site called m.tvcatchup.com. Whilst other networks let you stream what you want Vodafone will only let you stream what they think is suitable. If you have a IPhone it does not use Vodafones system and you can stream.

My tv catch up works fine.

Have checked whether you have got content control on your account?

There was a big thread on the Eforum. Till Vodafone did not like what was been said and locked it. They admit that unless you have a IPhone they block a lot of streaming sites as they cannot tell if they are adult or not. If they have approved the stream then its ok otherwise it just wont connect.

Ok that makes sense. I use an iphone.

Ok it has now made the Register which explains it in far more detail.
http://www.theregister.co.uk/2010/06/18/vodafone_rtsp/