Submitting ideas for programmes

[tellyblues]

Looking for some info on what to do with ideas, treatments I have for new programmes/formats etc. Quick check of the main broadcasters' sites and they don't accept unsolicited material or that from members of the public. Have also contacted production companies about entry level positions, which I would be doing anyway because I worked towards a degree in TV.

It's looking unlikely I'll get anything so wondering about the ins and outs of just posting ideas online?

Any advice appreciated.