One the best "free" things about January might be the Pennsylvania Farm Show. About 500,000 fellow attendees agree. Pro & College football aren't too bad either.
The Farm show has a mind blowing 6,000 animals and 10,000 exhibits. I think it is impossible to see everything in one visit. The PCN Televison channel pretty much runs Farm Show coverage 24 hours a day for the 9 days of the event.
It offers live and unique arena entertainment (like a free rodeo), art, crafts, shopping, food, hands-on science, environmental & educational displays, state agencies, Penn State, vendors, live cooking demonstrations, numerous kid activities (carousel), pens filled with hundreds of pigs, cows, sheep, chickens, ducks, plus many unique species. There is an entire building dedicated to farm and outdoor recreation equipment.
Not only is this event a celebration of Pennsylvania farming and rural lifestyle, it's also a valuable educational, economical and networking opportunity for all the participants.