The Bengals are not the only NFL team with a perfect record so far that hasn't put on perfect performances.
Atlanta is also 5-0, and also was pushed to overtime on Sunday, except not against Seattle but by a flawed Washington club, before winning 25-19. The Falcons are the first NFL team to open with five wins that include four after trailing in the fourth quarter.
Denver is a shaky 5-0, too — and that record is despite Peyton Manning, not because of him. He threw two picks Sunday, has more interceptions (seven) than touchdown tosses (six) through five games for the first time since his rookie season, and the Broncos' offense failed to produce a touchdown for the second time in five games yet pulled out a 16-10 win at Oakland.
Even Aaron Rodgers had his problems, throwing his first two interceptions of the season, and his first two interceptions at home since 2012, as Green Bay got to 5-0 with a 24-10 victory over St. Louis.
Meanwhile, Tom Brady and the New England Patriots just keep on keepin' on: They're 4-0 after easily defeating Dallas 30-6.
Next Sunday, if New England can win at Indianapolis (hmmm, think they'll check the footballs' air pressure?), and Carolina (4-0 with a bye this week) can win at Seattle, this would be the first season in NFL history with six teams starting 5-0.