<P> 1970 was a turning point year for the Steelers . The team, along with the Cleveland Browns (with whom the intense "Turnpike Rivalry" developed) and the Baltimore Colts, joined the former American Football League (AFL) teams in the new American Football Conference (AFC), following the AFL--NFL merger that year . The team also received a $3 million relocation fee, which was a windfall for them; for years they rarely had enough to build a true contending team . The Steelers moved into Three Rivers Stadium, and Terry Bradshaw, picked first overall in the draft, started at quarterback . Myron Cope, thought by many as a Pittsburgh institution, entered the broadcast booth for a 35 - year career as a Steelers radio commentator . The initial results, though an improvement over the late 1960s, were still unimpressive . Pittsburgh lost its season opener against the Oilers and Terry Bradshaw struggled for much of the season, being sacked for a safety in each of his first three games and throwing 24 interceptions on the way to a 5--9 record . The local media subjected him to harsh criticism for a long time . In 1971, Bradshaw threw 22 interceptions during a 6--8 season . </P> <P> 1972, however, was the breakthrough year, and the beginning of an NFL dynasty . Rookie Franco Harris joined the team and ran for 1,055 yards and scored 11 touchdowns . Pittsburgh finished 11--3, first place in the AFC Central, and made the playoffs for the first time since 1947 . </P> <P> Their first playoff game, against the Oakland Raiders, at Three Rivers Stadium, featured one of the best - known plays in league history: the Immaculate Reception . On 4th down from the Pittsburgh 40 - yard line with 22 seconds left and trailing 7--6, Bradshaw threw a pass intended for John "Frenchy" Fuqua . Raiders defensive back Jack Tatum knocked it away, but it was scooped up at ankle - height before hitting the turf by Franco Harris, who took it into the end zone for the winning touchdown and a 13--7 victory . In the AFC Championship the following week, the Steelers lost 21 - 17 to the "perfect" Miami Dolphins, who finished the season 17--0 . It was a disappointing finish, but it started a run of eight straight playoff appearances . Arguably the most defining and memorable play in the history of the NFL, the Immaculate Reception thrust the Steelers into its glory years of the' 70s . </P> <P> After an 8--1 start in 1973, a losing streak late in the season cost the Steelers several home games during the playoffs, and they lost a tiebreaker to the Cincinnati Bengals for first place in the division at 10--4 . The Steelers traveled to Oakland for the first round of the playoffs and lost 33--14 . </P>

When was the last time the steelers won in chicago