Yep, as already answered, it's the resolution density that affects graphics performance, not screen size. A 1080p monitor or TV (1920x1080 resolution) will put the same stress on a graphics card whether it's 22" or 60". Conversely, a 27" 2560x1440 resolution monitor will have a heavy impact on graphics performance (frame rates) over a 27" 1920x1080 monitor
Well, something everyone is missing is what response time your TV has. 5ms or less is considered very good for gaming, anything over that and you will notice smearing in the image as you move around, etc.
There are TV's that are built with extremely good refresh rates, the same as monitors.
Another factor is refresh rate.
Here is a discussion about both:
Strict Definition: The time required for a liquid crystal to change orientation.
Another way of saying it : The time required for a pixel to change from one luminance(light) level to another in a liquid crystal display.
Strict Definition: The time alloted for each frame of video to be displayed on the screen divided into one second. Active matrix displays like LCD use the entire alloted time to display a frame.
(ie - each frame of video is displayed for 16.6666ms , 1/.016666sec = 60Hz)
(ie - each frame of video is displayed for 8.3333ms , 1/.0083333sec = 120 Hz)
Another way of saying it: DISPLAY FRAME RATE (note: does not have to equal the signal frame rate)
LCD blurring is a combination of long response-times and long hold-times. Reducing the response time with overdriving techniques does not help the hold-time. Reducing the hold time by increasing the refresh rate does not change the response time. You have to do both to really reduce blur.
Big Note here: You cannot just double the refresh rate of the display from 60 to 120Hz to reduce the hold-time and hence the blurring. This is because the display will just duplicate the incoming 60Hz signal frames resulting in no change in hold time. (ie 8.3333ms + 8.3333ms = 16.6666ms). You must either add a new frame (interpolation) or add a black frame (BFI) to get any improvement in motion. Both approaches result in 120Hz refresh rate with 8.3333ms hold time.