As hundreds of women and some children came to pray, a preacher called for adulterers, homosexuals, women who act like men and Muslim converts to other faiths to be killed, saying: "Kill him, kill him. You have to kill him, you understand. This is Islam."
Channel 4 said: "Worshippers are repeatedly told they must lead separate lives from non-believers and not tolerate other religions. Christian teachings are described as "vile and disgusting, an abomination."
At private, invite-only prayer meetings linked to the mosque, the reporter films the leading preacher from the women's prayer circle issuing strict diktats on women's personal
freedoms - decreeing they must not travel far without a male member of the family to escort them, and instructing them not to integrate with British society or work in a non-Islamic environment."
In the same mosque, the reporter visited the bookshop and discovered books and DVDs still on sale, promoting extremist, anti-Semitic, misogynistic and intolerant messages, Channel 4 said.
"Unbelievers are described in one DVD as: 'Evil, wicked, mischievous people - you can see the evil in their face.' Whilst Jews, 'have abominated, filthy, disgusting gross belief - their time will come like every other evil person's time will come.' "