I have 3 tvs and only have 1 stb. when analog signal gets stopped, i will be watching only one tv. Now i got the stb my local cablewala provided. when it starts, it shows on the tv screen a certain frequency is being accessed. Now my question is, if i can get hold of some black market stb and put it on my other tvs (the same cable line being splitted with a 1 to 3 line splitter) and set the same frequency, will it work ?