For the second time in four weeks, a Patriots game set TV rating records: their game against the 7-0 Colts was the most-watched Sunday afternoon NFL regular season game since 1987, when network records began. The game was also notable for being the latest in a NFL season that two undefeated teams have ever faced off against each other. It was the first time that the last two unbeaten teams had met since 1997 when the Patriots lost to the Broncos and only the second time that the last two unbeaten teams had met since 1973. After playing four of their last six games in Foxboro, the Patriots traveled to Indianapolis to face the Colts in a re-match of the 2006-07 AFC Championship game in a game some members of the media dubbed "Super Bowl XLI 1/2. " On the game's opening series, the Colts drove 52&#160;yards on 14 plays but left the field without scoring after former Patriots kicker Adam Vinatieri missed a 50-yard field goal, his first-ever miss in the RCA Dome. On the ensuing drive, the Patriots failed to make a first down, the first opening drive of the season in which they failed to score. With the ball on their own 9-yard line, the Colts moved to the Patriots' 3-yard line after two Joseph Addai rushes for 33&#160;yards and a 37-yard defensive pass interference penalty on Asante Samuel. After two plays gaining no yards, the Colts were again forced to kick a field goal, this one good from 21&#160;yards out, for the only points of the first quarter for either team. After nine plays from scrimmage in the first quarter, the Patriots took a 7-3 lead early in the second quarter on a 4-yard touchdown catch by Moss. After a Gostkowski touchback on the next kickoff, the Colts again drove inside the Patriots' 10-yard line on 34 receiving yards by Addai on three catches as well as a 40-yard defensive pass interference call against Hobbs. The Patriots' red-zone defense, that had entered the game ranked last in the NFL, held the Colts to 1&#160;yard on three plays and a 25-yard Vinatieri field goal to make the game 7-6. On the next series, the Patriots drove to the Colts' 23-yard line before a 15-yard personal foul penalty on Matt Light preceded a Brady interception (the third of the season), this one caught by Antoine Bethea at the Colts' 2-yard line. With 1:46 remaining in the first half, the Colts moved the ball to their 27-yard line, and with 28&#160;seconds remaining, Peyton Manning threw a screen pass to Addai, who proceeded to run 73&#160;yards for the touchdown, giving the Colts a 13-7 lead at halftime. For their first two drives of the third quarter, the Patriots were unable to gain a first down and were forced to punt. The Colts fared similarly, with Manning throwing an interception to Rodney Harrison on his first play of the half. On their third possession of the quarter, facing a 3rd and 7 from the Colts' 41-yard line, Brady scrambled 19&#160;yards for the first down. After catches of 12 and 9&#160;yards from Moss and Kevin Faulk, respectively, the Patriots reached the Colts' 14-yard line but settled for a 34-yard Gostkowski field goal after Laurence Maroney ran for a 2-yard loss on 3rd and 1. A field goal was, once again, the only points of a quarter for either team; the third quarter ended with the Colts leading 13-10. After a Colts punt and a Moss 14-yard catch on the first play of the 4th quarter, the Patriots had possession at the Colts' 42-yard line. On the next play, Brady was intercepted again by linebacker Gary Brackett, who returned it for 28&#160;yards; after another 15-yard penalty from Light, the Colts took possession at the Patriots 32-yard line. Despite Vrabel sacking Manning on the first play of the Colts' drive, a 17-yard Dallas Clark reception helped set up a 1-yard Manning touchdown run to increase the Colts' lead to 20-10 with 9:42 remaining in the game. Starting from their own 27-yard line, Brady attempted passes to Moss on the first six plays of the drive. The second attempt was completed for 15&#160;yards, while the fourth attempt went for 55&#160;yards and put the Patriots on the Colts' 3-yard line. On the fifth attempt, Moss was penalized 10&#160;yards for offensive pass interference in the end zone. After an incompletion to Moss, Brady hit Welker for 10&#160;yards and then again for 3&#160;yards and a touchdown to cut the Colts' lead to 20-17 with 7:59 remaining. This touchdown also set the Patriots' record for touchdown passes in a single season, breaking Babe Parilli's record of 31. After two offensive line penalties by the Colts pushed them back 15&#160;yards, Colvin strip-sacked Manning at the Colts' 22-yard line, though Colts offensive tackle Charlie Johnson recovered the fumble. After Wes Welker returned the subsequent Colts punt 23&#160;yards to the Patriots' 49-yard line, a 5-yard pass to Moss and a 33-yard pass to Stallworth set up a 13-yard touchdown catch by Faulk to put the Colts behind 24-20 with 3:15 remaining. That pass made this Brady's ninth consecutive game with at least three touchdown passes, breaking Peyton Manning's record of eight. After a Reggie Wayne 24-yard reception brought the Colts to their own 48-yard line, Green strip-sacked Manning three plays later; Colvin's recovery of that fumble gave the Patriots the ball, and set up a situation where a first down would allow them to win the game. Unlike a similar situation in the 2006 AFC Championship, where the Patriots were forced to punt, the Patriots converted on 3rd and 6 with a 10-yard pass to Welker. Brady took three kneel-down snaps to end the game, leaving the 9-0 Patriots the NFL's only remaining undefeated team heading into their bye week.
Question: Who had the lead at the half?
Answer: the Colts