DNS issues with an external site once adding new forwarding zone.

I am trying to add a new DNS to our previous list for a few intranet IP's. I had to create a new forward lookup zone to add the new DNS addresses(they all look like 1.websitetv.com, 2.websitetv.com, etc.) once added we could no longer reach the original www.websitetv.com from inside of the building it was not listed on the DNS before. I added a new host A targeting the IP and a cname with www.websitetv.com but both of those ways it would continue to come back with a dns_probe_possible. When I attempt to go to the listed IP from GoDaddy (the host site) it comes up with a 404 error. if I delete the created forward lookup zone the website will come up correctly as before.