If you need these two, you are going for a TV and not a monitor....
There are very few LCD monitors with loudspeakers (thus offering a headphone jack as well).
Let's talk about resolutions:
Today almost every monitor/ TV is wide screen (16:9) so I will not bother even mentioning the old square format 4:3. And they are all flat screens, LCD or the newer LED technology.
Most TVs are going to be HDready or FullHD
A HDready TV is a format you do NOT want:
1280x720 Progressive („720p“) <- This is the max good quality
1920x1080 but
Interlaced („1080i“) notice the 2i" at the "1080i". Interlaced is NOT GOOD
What you need to full for is a FullHD or also mentioned "1080p"
1080p is the shorthand identification for a set of HDTV high-definition video modes that are characterized by
progressive scan and 1080 horizontal lines of resolution.
The term usually assumes a widescreen aspect ratio of 16:9, implying a resolution of 1,920 pixels wide by 1,080 high.
1920x1080 Progressive („1080p“)
Since all TVs today have min two HDMI your problem is solved. You can go up to 60" if you want
A word of caution: The resolution is fixed at 1080p (1920x1080) then the bigger the screen, the more coarce the pixels will be... so if you get a 42" and sit 1m in front of it you may be dissapointed by the quality.
~S~