Research

People Meter

Pros:
Quite Accurate
People want to have one.
Reaches all kinds of people

Cons:
Low Sample Size
People may not use the right account when watching TV

Web Surveys:

Pros:
Reaches a lot of people
Can do it in the comfort of your home
No Pressure to do it

Cons:
People may not be surveyed, they might think its a pop-up
People can lie about answers.

Clicks on Demand

Pros:
Links can be distributed all over the internet.t

Cons:
Potential to be inaccurate, Eg. people accidentally click on link
More people would watch it on T
People may only watch short amount of the program

Polls

Pros:
Reaches a large amount of people.
Direct information

Cons:
People Lie
Give false information

Competitions

Pros:
Lots of people will register

Cons:
People may be uninterested in the data collection and just interested in the competition.