ClipBucket is an Open Source and freely downloadable PHP script that will let you start your own Video Sharing website (YouTube Clone) in a matter of minutes. ClipBucket is the fastest growing video script with the most advanced video sharing and social
Software is not too bad. Support though is diabolical and CB should be ashamed of how they treat existing customers who CB try to charge because their plugins break. Support for older plugins and themes is also very poor, and charging 200usd for a youtube clone theme is atrocious! Would not recommend CB in it's current form because support is awful and the hostile attitude of some of the staff on the CB discourse site and forums leaves a lot to be desired!