I used to watch laughter challenge since I was too small.
In my opinion its a source and a root of all the laughter shows.
It had made a remarkable contribution to enhance all other laughter shows not only this but also the jokes played have been copied by performed in other laughter shows.
And also it given a opportunity to Navjot singh siddhu to act as a judge in laugher shows .so its a source of all laughter shows of Indian telivision.