Panasonic TX-P42ST30B Connect to laptop?

Hi Guys,
I am new her,so please forgive my ignorence.
I have a Windows 7 Laptop, that I am trying to connect to my 'Panasonic TX-P42ST30B',I have installed Serviio on my laptop, my laptop is using wireless and my TX-P42ST30B is hard wired to my HUB \ ADSL router. The problem that I am having is that I can't get the laptop to see the TV and Visa Versa, I know very little about Windows Media Player,I found

Usage Guide - How to Setup DLNA on Windows 7 Operating System - Support at Panasonic

That is kind of usefull.but when I go to Network Sharing and try changing the homegroup settings, it tells me I can't because I'm not connected to the home network, but I think I am?
Can anyone help.

I downloaded Servioo, I added my TV manually, by going into Setup on the TV and getting th IP Deatails and putting them in,then when I did a refresh, it found another device (possibly my BluRay Player as that is DNLA as well).I have also added things to the Library, now how do I see them on my TV?

Thanks

Steve