The Royal Institution Christmas Lectures: How to Hack Your Home
rigb.org
rigb.org
People who might not normally watch something with the word 'lecture' in it would just skip over it in iPlayer might continue watching it if they run into it as it's being broadcast and something interesting is happening.
This is how I first came across them as a child.
iPlayer is more restricted.
The RI is apparently not in great shape anyway, although I have heard little since this: http://www.telegraph.co.uk/news/science/6964971/Susan-Greenf...
It is something I would like to see put on after a real crowd puller - such as doctor who, almost a perfect companion show in fact.
My son asked me yesterday to read a (kids) encyclopaedia of science with him because he wanted to learn. It was a great moment. Every kid has those moments, and Even TV has a duty to support them.