What are the Positive and Negative Aspects of a Television?

I'm doing a tech report on television. If anyone can help me, can someone tell me what the positive and negative aspects (pros and cons) of television are? Or if there's a website I could go to to find out...and if you know any website on a timeline for television, like the inventions that led up to the television and the inventions that developed as a result of the television. Thanks!

Hi

Article on affects of TV:

http://www.kidshealth.org/parent/positive/family/tv_affects_child.html

http://www.kidsource.com/kidsource/content/tv.viewing.html

(Also, this question has been asked many times and you might try typing it in on Yahoo Answers and read some of the replies. I just did and some of them were pretty good.)

Development of TV

http://inventors.about.com/od/tstartinventions/a/Television_Time_2.htm

http://share4.esd105.wednet.edu/wachtelg/development.htm

http://www.tvhistory.tv/History%20of%20TV.htm

Edit:

Positive effects:

Some of TV's positive sides are:

· helps people to learn about other cultures

· gives family members of all ages an opportunity to spend time together while watching it

· parents can use TV to get kids reading by getting books on the same subjects

· parents and children can talk about TV programs

· educational programs can teach children new things, and even help them make new friends

· news, current events and historical programs can help kids find out more about other cultures and people

· documentaries can create a picture of the world in kids' minds

· cultural programs can show children the world of music and art

positive== educational, like PBS, History Channel

negative= violence, drugs, alcohol, etc.