Since this site doubles as an explanation to the sport to people who have never even seen it before, it seems as though a proper explanation of the two types of cricket I have failed to mention so far goes in here.
ODI is short for One Day Interational, and is the most common version played on an international level. Unlike 20/20 which is one innings (yes the singular is plural, I've never tried to understand it either) with 20 overs (estinally overs are the baseball equivilent to an inning) ODI's have 2 innings usually 40 or 50 overs depending on the agreement between the two sides. From there, there's a coin filp (as there is in all forms of cricket) and winner decides to bat or bowl first. From there, it's standard cricket (which is complicated enough that it will probably get it's own post at some point).
Test Cricket, is simply put, what's killed any chance at all of cricket being a major sport in the west (with a notable exception I will cover next time). Test Cricket is the top level of Cricket in the world, unforuntately, one Test Cricket match can take up to 5 days to play. They only play during the day (20/20 is the only cricket that's played at night) and they stop in the middle of whatever they are doing once the sun goes down. It's required both teams wear entirely white during a test match, and since it istop level cricket, you actually need to show that you're able to play it, by winning your way up to the right, and being approved as a full member of the International Cricket Council of which there are currently only 10 members: England, Austrailia, New Zealand, The West Indies, India, Pakistan, Bangladesh, Sri Lanka, South Africa, and Zimbabwae. (for those who are curious the United States and Canada are associate members, and can only play ODI's if they reach World Cricket League Division 1, but for which Canada has an exception to play until next year).
The major problem with test cricket is it's never ever going to translate for tv, they play for 8 hours at a time, with one 30 minute tea break during the match, and an hour lunch break. How would you take any commerical breaks for a show that almost never stops?