This is meant to be for the people who don't know.
The Big Top 40 Show -
Broadcasts around the UK via Radio every Sunday
Check out the chart -
http://www.thebigtop40.com/
BBC Radio 1 -
Broadcasts around most parts of the UK via Radio every Sunday
You can also listen online -
http://www.bbc.co.uk/radio1
The UK Top 40 -
Broadcasts on VIVA, a UK TV channel, most days
Check out the chart -
http://uk.viva.tv/music/the-official-uk-singles-chart