The Detroit Tigers announced the games that will be televised and on the radio during the 2012 spring training.
TV Dates:
March 14 -- ESPN
March 19 -- ESPN
March 20 -- ESPN
March 21 -- Fox Sports Detroit
March 29 -- Fox Sports Detroit
March 31 -- Fox Sports Detroit
April 4 -- Vs. Toledo Mud Hens -- Fox Sports Detroit
Other games may be picked up by the MLB Network, but those seven are the bare minimum.
Radio dates:
March 3 -- 97.1 FM
March 4 -- 1270 AM
March 5 -- 97.1 FM
March 9 -- 1270 AM
March 10 -- 97.1 FM
March 11 - 97.1 FM
March 17 -- 97.1 FM
March 18 -- 1270 AM
March 25 -- 97.1 FM
March 31 -- 97.1 FM
April 1 -- 1270 AM
As out-staters know, you may or may not get these games on your affiliated stations. (I know I don't get them in Marquette).
ETA: Per the link on tigers.com, the opposing teams will have MLB.TV broadcasts for several other games. So take a look at that if you're making plans to watch.