Table:
text: 1978 Pittsburgh Steelers season
Schedule
Schedule
Week Date_ Kickoff_ET_ TV Opponent Result_ Record Game_Site
1 Sun. Sep. 3 1:00pm NBC at Buffalo Bills W 28–17 1–0 Rich Stadium
2 Sun. Sep. 10 1:00pm NBC Seattle Seahawks W 21–10 2–0 Three Rivers Stadium
3 Sun. Sep. 17 1:00pm NBC at Cincinnati Bengals W 28–3 3–0 Riverfront Stadium
4 Sun. Sep. 24 1:00pm NBC Cleveland Browns W 15–9 OT 4–0 Three Rivers Stadium
5 Sun. Oct. 1 1:00pm NBC at New York Jets W 28–17 5–0 Shea Stadium
6 Sun. Oct. 8 1:00pm CBS Atlanta Falcons W 31–7 6–0 Three Rivers Stadium

Question: Which team did they play against at Rich Stadium in the 1978 Pittsburgh Steelers season schedule?