ppa

When I install a program on Ubuntu I'm sure I should add  ppa
what is ppa?

Suppose you have a software development
And is located in the Ubuntu repositories
You must upload the keys in reservoirs
So others can be downloaded
Another use for that can allow you to uploadand download  the source code in the repository is

example install package on ubuntu
 sudo apt-add-repository ppa:jon-severinsson/ffmpeg
apt-get update
apt-get install ffmpeg

how to work?
you want install ffmpeg on ubuntu but canot install because forget add ppa
stp1:
 sudo apt-add-repository ppa:jon-severinsson/ffmpeg
The first stage connect to Ubuntu repositories  and Launchpad
stp2:
When authentication finished (add key to ubuntu)
you Should type command
apt-get update
so
Ubuntu packages needed so that you uploaded

  Download  and added package to system

stp3: you type
apt-get install ffmpeg
install finshed

good luck

ffmpeg

install ffmpeg on ubuntu

sudo apt-add-repository ppa:jon-severinsson/ffmpeg
sudo apt-get update
sudo apt-get install ffmpeg


how to use ffmpeg convertor  ?

Is identical on all distributions
example1:
ffmpeg -i InputVideo.mpg -vcodec mpeg4 -b 3000k -s hd480 -acodec flac OutputVideo.mkv
example2:

ffmpeg -i iranian classic.flv -vcodec -b 128k -s 4400 -acodec flac iranian classic.mp3

good luck

can not install package on ubuntu

the package lists or status file could not be parsed or opened. ubuntu

I have also seen this problem occur when you have too many sources in your repos.

Try the solution posted above and/or also perhaps this which is sometimes recommended on launchpad:

run in terminal

sudo mv /var/lib/apt/lists /var/lib/apt/lists-old

sudo mkdir -p /var/lib/apt/lists/partial

sudo apt-get update

see more

good luck

OS TV

what is ubuntu tv?

Ubuntu TV is a flavor of the Ubuntu operating system intended for use on smart television sets. While with traditional televisions you flip between channels of programmed content, Ubuntu TV will provide an interface to choose shows and movies à la carte. It will also be internet enabled, letting you browse the web, use rich media applications, record shows, and control remotely from a mobile device.

Above all, Ubuntu TV is its tagline: TV for human beings. The televisions of 2011 are incredibly complex: they come with input cables, set-top boxes, and controllers with eighty buttons and as many modes (AV1, AV2, HDMI... do these look familiar?). Ubuntu TV aims to be a revolution in ease of use.

Features

Watch millions of movies and TV shows streamed over the web on demand.

Search and record programs from your cable provider.

Get music and media to all your other devices.

Access high quality online media from YouTube, Pandora and other sources online.

Share the screen with your smartphone, or use it as a remote!

The great differentiating feature of Ubuntu TV is its commitment to putting all these features in one easy-to-use interface. Other smart television products fragment the user experience with apps. Want to watch a video? You must check Netflix, Hulu, Amazon, Youtube, and your cable listing to see which service has it. Ubuntu TV has one searchable, browsable interface that consolidates content from dozens of different sources, and makes it easily accessible to you.

see more:

http://askubuntu.com/questions/94148/what-is-ubuntu-tv