First foray into Hi-Def and Blu-ray; a quick question.

[JohnWestCoast]

Last weekend I puchased my first high-def TV (a 42" JVC 1080p, model# LT42X788). In the paperwork that was enclosed it reads...
"This JVC television can accept a variety of HD signals, including 720/60p, 1080/60i and 1080/60p. It DOES NOT accept a 1080/24p signal. Please note that in some cases a Blu-Ray player may only offer the choice of 1080/60i or 1080/24p. In this case it is necessary to choose the 1080/60i output."

My question is this: How discernable is the difference between the 1080/24p and the 1080/60p signal?
It is my limited understanding that the 24p signal is the way the movies were meant to be viewed but am now learning the HDTV I purchased will not support it.

I have 30 days to take this TV back and upgrade it.
Obviously I am on a budget but don't want to feel totally shorted on his purchase. I can find a little more money to upgrade to a HDTV that will support the 1080/24p signal if it is that important.

Any help would be great here. The clock is ticking...
I will read some threads about the purchase of a Blu-Ray player before asking some ridiculous questions.

Thanks.