In the battle for TV ratings, Pakistan's top channels are making money out of Ramadan by broadcasting round-the-clock chat shows mixing prizes, charity and prayer.

As the top-rated show fends off allegations of poor ethics for giving babies to childless couples live on air, producers tell AFP that there is nothing wrong with blending religion and entertainment.

Members of the studio audience queue for hours for ringside seats at Aamir Liaquat Hussain's 12-hour, daily broadcasting extravaganza which combines microwave raffles with child adoption.

With a closely cropped beard, spectacles and smile plastered permanently to his face, Hussain is no stranger to controversy.

But unable to substantiate his alleged degree in Islamic studies from Spain, he revels in his status.

"It is not commercialisation, it is not showbiz. It is real Islam," he told AFP. "I am the religious icon of television."

Sumaya, an 18-year-old student queuing up to get a pass onto the show, is a massive fan.

"According to me he is the most popular because of the gifts and also because they are helping poor people, and people for Iftar and what they are saying about Islam," she told AFP.

On his TV set, a wedding hall at a Karachi hotel, adverts for ketchup vie for space with pictures of camels grazing in the shade of artificial palm trees.

Hussain croons into the microphone about the virtues of fasting, of inter-faith tolerance and recites the Koran.

He plays with children, oversees the cooking of oily chicken masala and invites Sufi singers to perform religious songs, whipping the viewers into a frenzy.

The show lulls its guests, getting ever hungrier, towards sun down and the breaking of the fast when plates of dates, battered vegetables and sugary delicacies are handed out to much relief.

After dinner, there are quizzes -- with mobile phones, a motorbike and even a car as prizes.

Last month, two infertile couples, whose request to adopt had just been approved by a charity, were called into the studio to be handed a baby live on television before millions of viewers.

"It was our dream to have a child," said Tanzeem, new mother to Fatima, barely a month old with blue eyes.

Hussain and the charity claim to want to break taboos about adoption, encourage women not to abandon unwanted children and men not to divorce wives who can't have babies.

The giveaways were criticised in the Western media, but in Pakistan, a country with millions of desperately deprived children in need of good homes, others defended them as social work.

Television channel Geo and the charity insisted both couples were fully vetted prior to the show after already signalling their desire to adopt.

Instead there has been as much concern about fears that Islam is being commercialised in a crude TV ratings war with the 30 days of Ramadan raking in even more revenue than cricket.

"Aamir Liaquat Hussain's show is the biggest success in the history of Pakistani TV," one Geo executive told AFP.

"It's a race," hit back a producer at rival channel, ARY.

"Big money is involved," he said. "We talk about millions of rupees (tens of thousands of dollars) per month for a star."

A salary of even $10,000 is a fortune in a country where teachers can earn just $100 a month.

ARY's answer to Hussain is Junaid Jamshed, a rock star from the 1990s who says he turned his back on money and partying to become a preacher after the 9/11 attacks which he felt demonised Islam.

ARY cuts a more conservative image. Guests remove their shoes before coming on set, as if in a mosque. During advertisement breaks, Jamshed turns towards Mecca to pray in a corner of the studio.

But the set also has cookers, motorbikes and mobile phone ads. Prize draws recite verses from the Koran, calling for public donations to help the sick and disadvantaged.

Jamshed compares the rise of TV preachers in Pakistan as a catch-up to Christmas programming in the West and defends the mix of religion and entertainment.

"This is what Islam is. The essence of every religion is to make people happy and... to help people," he said.

Producers say that the segments of shows where gifts are given away have "phenomenal ratings".

Jamshed's co-host, Waseem Badami, sees nothing wrong in a ratings war but says decency still needs to be upheld.

"If all the TV channels are doing Ramadan transmissions, yes their prime objective is commercial. Why should we lie about this?"

"We are trying to maintain both that we want to be in the race but at the same time... this is a very sacred platform."