I have seen 2 or 3 show of Badi Door Se Aaye Hai, every time I feel it just time pass, when you have nothing to do you can pass time while watching this serial.
All aliens look comedian, and very far from Hollywood parameters of being Aliens look and feel.
Any character can enter any time in the show, no flow or story.
Star cast is good, but due to lack of story and imagination they are not attacking much people towards the show.
Rajeeb Mehta is my favourite TV star, to whom I can watch this serial.