Mini DisplayPort is a compact version of the DisplayPort connector introduced by Apple in 2008. Mini DisplayPort is free to license, and in 2009 it was included in the official DisplayPort 1.2 spec. In 2011 Apple and Intel announced the Thunderbolt format, which used the same physical connector, but significantly different protocols.
Screen refresh rate is the number of times an image on any type of monitor or television is reconstructed per second. This is measured in hertz.. (Hz).
----------------------------. I think this explains it far better than I can. The TV's refresh rate is the Hz value. So, for instance, if it is 120 Hz, then it is native 120 Hz (and will always run at 120 Hz). If you have 24p active, the TV will display each frame 5 or 10 times in accordance with the refresh rate as 120 and 240 are both divisible by 24 (where as 60 is not-this is where you get into 3:2 pull downs with 60 Hz TVs). Motionflow is another animal altogether.