Does anyone remember the show "New Amsterdam"? https://trakt.tv/show/new-amsterdam.
It had a very similar premise. Dude turned immortal by magic, after being killed defending people from racists. He now chills in New York with his old man son, who knows he's immortal. Also he fights crime.

New Amsterdam sucked though, and this looks promising.

I'd call it out as a rip off, but apparently New Amsterdam was itself a rip off of a book. Called Forever. http://www.buddytv.com/articles/new-amsterdam/is-foxs-new-amsterdam-a-knocko-10487.aspx

The TV show Forever is not based on the book Forever. The creator of TV Forever claims he thought it up. http://www.zap2it.com/blogs/forever_ioan_gruffudd_new_amsterdam_matt_miller_tca-2014-07

Also, the book Forever people are currently developing the story for TV and have been shopping that idea around for a while, nearly selling to ABC. http://variety.com/2012/tv/news/hamill-novel-forever-to-become-tv-series-1118057471/
So it is possible that TV Forever will have to change it's name because book TV Forever will probably have more rights to the name. http://deadline.com/2014/05/warner-bros-tv-forever-abc-letter-novel-pete-hamill-734336/

But then people will call book TV Forever a rip off of TV Forever, which is a rip off of New Amsterdam, a rip off of book Forever. So book TV Forever will probably change it's name, and fans of book Forever will hear about it being on TV, watch TV Forever and think it is a shitty adaption, missing real book TV Forever.

At this point everyone will be so confused they will be swallowed into a abyss of confusion and be lost Forever.