If you live in america, you can watch all episodes legally and free on the simpsons website.
You can watch them on tailedfox.com
nothing in life is free
You can go to TNT.com to watch full free episodes of Charmed.
Try Hulu, tvduck, or fancast also on fastpass tv which has great quality of the episodes you can go onto fox.com. the quality is great and its on 1 day after the episode was aired. The only bad thing is that there are still ads, but not too many. if u want to watch it for free go to blinkx remote
The CW has all the old Supernatural episodes for free, and it is legal.
watch your favourite Pokemon episodes on pokemonworld.com
Vudu and The CW both have them free and legal.
The CW websites show current season shows for free after they are aired
hubu or netflix with monthly membership
You can't - it's illegal
You can watch Emmerdale on ITV Player (link below).
If you live in america, you can watch all episodes legally and free on the simpsons website.
Comedy Central will have a few of the most recent episodes that you can watch. South Park Studios also offers quite a few episodes that you can legally stream for free.
http://www.cucirca.com/ or try http://www.tv-links.eu/tv-shows/
You can watch Gossip Girl episodes for free on www.GossipGirlCrazy.piczo.com on the 'episodes' page =)
Any television equipped with an antenna can allow one to watch free television shoes legally in the US. Also, many of the major broadcast networks allow viewers to watch selected episodes of shows online from their websites.