I am running Ubuntu 12.10. How do I set up my Panasonic Plasma to see the videos on my linux desktop. I have an in home wireless with encryption with a router. My wireless laptop can get on the internet. How to I get the tv to see the Linux desktop so I can see my videos on my tv?
You don’t say if your TV can actually connect directly to the Internet, nor do you say what (if any) apps are available on your TV. If your TV doesn’t have any of that stuff, then you’ll need something like a Google Chromecast.
Many TVs, DVD/Blu-ray players, and game consoles with built-in networking support UPnP/DLNA. You’ll need to setup a UPnP/DLNA media server on Ubuntu. There’s many choices for that.
If you don’t currently have a network-capable device attached to your TV, I’d recommend a Roku. You can install the PLEX channel on the Roku along with Plex Media Server on Ubuntu. This will allow you to stream videos from your Ubuntu PC. The Roku is somewhat picky in what media files it supports, but if you have a fast enough PC, the Plex Media Server software will convert the video (transcode) to a suitable format on the fly.
If you don’t need the Hulu or Netflix features of Roku, XBMC would be a better choice for streaming media from a computer to a TV. I built my own XBMC box last year but some companies are selling small devices with it pre-installed, such as this one: http://amzn.com/B00CH643A8.