Yeah, just got into it this year. Watched the last few episodes of last season and got into from there. I like it. Pretty good blend with the other shows they have throughout the year.
As for spoilers, here's the short of tuesday's ep: His girlfriend (can't remember her name, Marie I think?) had a miscarraige but didn't tell anyone yet. The dumb firefighter dating the fat girl (these are their references not mine) got into with her new boyfriend and got served a restraining order by Tommy's brother. Tommy's friend back at the 79th was trying to get him back and failing miserably, as either most people liked Sully, or hated Tommy (well only one guy who's addicted to pain killers hates Tommy) until they went out on a call and found Sully (actually rescued him from a fire) dressed like a woman and frequenting a bondage club. Tommy talked to the aforementioned firefighter who hates him (I forget his name too) about what happened and they seemed to get over it or at least tensions seemed to ease between them. The chief gave them the option to trade Sully for Tommy (and then soon afterwards the Tommy conversation and the Sully rescue occured), and after intially saying they liked Sully, they recanted and chose Tommy in a unanimous vote.
Either way it was a good episode and it's on again tonight if you missed it. Hope you catch it tonight.