which mac have an av port?

[FallOutBoyx530]

i just bought a cable av port to rca hoping to watch movies on my tv, but it turns out that it wouldnt show, i'm thinking i bought the wrong cables, or am i wrong? anyways, which mac have an av port/hole anyways? also, if anybody wants to buy the av cable, i'm willing to sell it, just pm me.

Thanks, FallOut