The easiest method is to use a high definition TV screen that has a hookup for a standard RGB cable. Unplug your current computer monitor and plug in the high def' TV screen.

Another option is to use a computer with a television-out connector. Many after market video cards have this option.

If the slide show on the CD is actually a VCD (video CD) that can be played with a set-top DVD player, you can use a television set and a set-top DVD player (that is capable of playing VCD).
But.....the picture quality may be poor.
Most VCDs are only 352 x 240 pixels.
(depends upon how it was made and what software was used to make it).