Kenya's televangelism 'empire'

Televangelism is growing across Africa, but especially in Kenya where religious programmes are led by powerful and charismatic pastors who often preach unconventional ideas, like miracle cures for HIV and Aids.

For many pastors, it is a lucrative business, prompting concerns that they might be exploiting the commitment of their followers.

Al Jazeera's Zeina Awad reports from Nairobi.