They all want you to buy a dvr. Check the link I posted earlier. It has much more detail as to how to make it work. You need to do some of your own research.
Only if you want to record. The info @WildBill gave you would be a direct reliable connection to a TV with no Wifi or apps needed. And pretty cheap to
i asked the seller of that cctv camera on amazon if the camera can connect to a tv and they say it needs the dvr to do that. so if thats truei may go back to the wyze cam and a tv using a fire stick.
A DVR allows more than one camera, recording of video, and monitor outputs. However, unless there’s something particularly weird about the camera, then the BNC to video adapter @WildBill mentioned should work fine. Very few people use a camera just to view without being able to record which is likely why the seller told you the standard way it’s done. If it was me, I would try it and just return it if it doesn’t work since it would be such a simple reliable setup with no WIFI or apps needed.
If you have a TV with HDMI, here is a BNC to HDMI box that’s cheaper than a firestick and will also do what you want more reliably than WIFI. It would basically act as the DVR, but with no recording or multiple camera ability.
Amazon.com: BNC to HDMI Video Converter Box,BNC Adapter with Audio for Security Cameras DVRs Supports 720P/1080P Output : Electronics
Several people have tried to help with different options ranging in reliability and price for your unique use case. At some point, you’ll have to try one out or skip the idea.