I became hooked to this show quickly. Subject matter can include death pretty often and some sexual inuendo as well, so not good for younger kids, but a lot of the issues that come up on the show would be good discussion materials for older kids and teens.
Miami Ink is a very entertaining show for me. I would reccommend children 12 and up to watch this program. Although on one of the episodes one of the men decided to pee &/or poop in the toilet and did not flush, teaching kids bad ettiquette.