I know this is nothing to do with escorts, but my head is melted.

I want to update my 10 year old security cameras.
Hd TVI or IP ?

I could buy a turbo DVR and throw up a few cameras using the existing coax, but I'm tempted to put in a new IP network.
I don't know a whole lot about it. It looks easy enough.

Any suggestion? What should I buy?