MIPTV’s 5th Annual ‘Content 360 Challenge’ has begun accepting entries at www.mipworld.com.The cross-media pitching challenge is looking for the best original cross media content ideas. Finalists will be invited to Cannes on April 12 to 16 to pitch their ideas to networks that include the BBC, TF1, KCC, NFB, and the European Commission. The deadline for entries is February 15, 2010.