It’s the second largest day that has food involved next to Thanksgiving. While it’s not a holiday, many have pressed Congress to make it a National holiday. Once an event that took place in the early afternoon after church, it’s now a prime-time event and many watch the commericals but for the most part, there’s a sporting event involved.

For the 51st time since its birth, Super Bowl Sunday will make an appearance, like the swallows at San Juan Capistrano. It signals the end of the football season. The winners get to take home a trophy that looks a lot like a football. The loser will be second guessed right up to kickoff the next season.

Friends, co-workers and families will gather for the big game. Church youth groups will have their get together, while most churches or mosques will move up their services so their parishoners can go home and watch the game. New televsions will be purchased on the day of or before kickoff and most will watch their team either win it all or lose.

A few things you need to know about the Super Bowl.

1. This year’s contest is Super Bowl LI (51 for those that are not familiar with Roman numerals).

2. It is one of the most-watched events in the history of televison or sports for that matter (Last year’s Super Bowl 50 contest between Denver and Carolina had 167,000,000 viewers either watching the game live on CBS or online either in the United States or outside the borders. The game had a 72 share, according to Nielsen, which meant that 72 percent of all televisions in the United States were tuned to the Super Bowl and the game had a 46.6 rating).

3. To date, through last year’s Super Bowl 50 contest in Santa Clara, 3,876,314 have attended Super Bowl games. The largest crowd was 103,985 at Super Bowl XIV, which was played at the Rose Bowl in Pasadena, California. That’s an average of 77,526. The smallest crowd? The first Super Bowl, which took place in the Los Angeles Memorial Coliseum. The crowd that day? 61,946. The cost of the cheapest ticket in the first Super Bowl? $5. Today, expect to spend about $3 to 4 thousand for a good seat with the cheap ones coming in at about $2,500.

4. There has never been a shutout in the history of the Super Bowl and while there have been some blowouts, for the most part, every team that has played in a Super Bowl on the winnning and losing side have scored points. There has never been a game go into overtime, either.

5. Remember that food thing we talked about before? There’s going to be a lot of it, which means that there could very well be leftovers. Remember your manners and watch out for your cousin Connie. She’s been known to wipe out a buffet and wiped out your Super Bowl party last year and did not gain a pound. Connie by herself could keep the local grocery store in business for the next three years. Be sure your guests have fun, they’re happy and they don’t drink and drive.

6. There are a lot of prop bets, which don’t always involve the game itself. Bets will be placed on the ammount of time it takes to sing the National Anthem, who scores first, what the halftime performer will be wearing (or not wearing). This year’s National Anthem singer, by the way, is Luke Bryant and Lady Gaga has the Halftime duties, in case you’re wondering.

7. There will be a lot of TVs sold during Super Bowl week. That’s a lot of cable and dish sales going on as well. Just make sure your dish/cable bill and the power bill’s paid.

8. The Super Bowl halftime show is 20 minutes long, instead of the usual 15. Be patient. There’s going to be a lot of moving parts involved, such as getting the players into the locker room, getting the performers set and ready to go and then taking everything down.

9. As a courtesy to their football neighbors, the NBA and NHL have a limited schedule of games and the last ones start at 1 p.m. Eastern, giving their fans a chance to watch the Super Bowl.

10. Lastly, those commercials. They’re not cheap. A 30-second ad will run you about $5.5 million or $183,333.00 a second. That means that you have about five seconds or so to decide if you like the ad or change the channel.

32 teams started the season with one goal in mind. There are four teams that have never gone to the big game in the Super Bowl era (Cleveland, Jacksonville, Detroit and Houston, either as the Oilers or the Texans). At the end of tonight’s contest in Houston, one team will be holding the Lombardi Trophy, while the other 31 will say “that should have been ours.”

Is the Super Bowl a BIG DEAL?

It’s a HUGE deal.