posh, flatscreen tv sets are only for the wealth. >> the average salary of a congolese is somewhere between70 and $90 per month. how many years are we supposed to save up for a new television? >> even for those who do buy a box or a new television, there will let me much to watch. a handful of state funded channels will be free, but viewers will have to pay for anything else. >> when we made this changeover, we negotiated a clause with the distributor that our channel would be free. that means that even if someone loses all of their pay channels they will not lose us. >> the switchover was supposed to democratize television there. more channels mean more choice. but in many african countries neither broadcasters nor viewers can afford that digital tv kinshasa is an experiment, one whose success remains uncertain. >> it is one of the greatest environmental challenges of our time, fertile land turning into desert. it's called desert if occasion. every year the united nations holds a day to combat it. it affects 1.5 billion people globally. due to drought and desert if occasion each year 12 mi