We have two "monitor" TVs.
I didn't need a tuner since every video source has a tuner
or is the video source. I can't remember the last time we actually had a TV without an external tuner.
So I bought a 32" Toshiba monitor that was designed as a tv without a tuner. It has VGA input, HDMI, RCA, S video and other component inputs. At the time a comparable TV was 300$ more. It's been a few years now and it's still going strong.
I later bought a 22" monitor (same capability as the Toshiba) for my office. I think it is a VISIO or something. Got it for maybe 20$ more than a plain computer monitor.
I would donthis again, but high quality "monitors" that are TVs w/o a tuner are hard to find. I wanted a larger one when I bought the 22",'but iirc the selection was limited.
The ones I own have speakers and a remote so you can really use it as a TV....or game console monitor