Read the following passage and answer the given question:

The place is a cramped…rented shack stacked with music tapes and rusty electrical appliances which doubles up as Raghav‟s radio station and repair shop.
He may not be literate, but Raghav‟s ingenuous FM station has made him more popular than local politicians. Raghav‟s love affair with radio began in 1997 when he started out as a mechanic in a local repair shop. When the shop owner left the area, Raghav, son of a cancer-ridden farm worker, took over the shack with his friend. Sometime in 2003, Raghav, who by now had learned much about radio…In impoverished Bihar state, where many areas lack power supplies, the cheap battery-powered transistor remains the most popular source of entertainment. “It took a long time to come up with the idea and make the kit which could transmit my programmes at a fixed radio frequency. The kit cost me 50 rupees‟, say Raghav. The transmission kit is fitted on to an antenna attached to a bamboo pole on a neighbouring three-storey hospital. A long wire connects the contraption to a creaky, old homemade stereo cassette player in Raghav‟s radio shack. Three other rusty, locally made battery-powered tape recorders are connected to it with colourful wires and a cordless microphone.

What changes has media experienced over the last few years?