Signal is a top class production made in 2016. I don't watch too many Romance tv shows, but this one was amazing. The hollywood, cannot boast with a large number of better tv shows. What's more, this is definitely the type of tv show that you can watch several times and always see something new, interesting. What determines the phenomenon of this tv show? It's realism, taking care of psychological probability?. Write in comment how much you liked it and what's your rate.