Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Week | Date | Kickoff ( ET ) | TV | Opponent | Result | Record | Game Site |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Sun. Sep. 3 | 1:00pm | NBC | at Buffalo Bills | W 28–17 | 1–0 | Rich Stadium |
| 2.0 | Sun. Sep. 10 | 1:00pm | NBC | Seattle Seahawks | W 21–10 | 2–0 | Three Rivers Stadium |
| 3.0 | Sun. Sep. 17 | 1:00pm | NBC | at Cincinnati Bengals | W 28–3 | 3–0 | Riverfront Stadium |
| 4.0 | Sun. Sep. 24 | 1:00pm | NBC | Cleveland Browns | W 15–9 OT | 4–0 | Three Rivers Stadium |
| 5.0 | Sun. Oct. 1 | 1:00pm | NBC | at New York Jets | W 28–17 | 5–0 | Shea Stadium |
| 6.0 | Sun. Oct. 8 | 1:00pm | CBS | Atlanta Falcons | W 31–7 | 6–0 | Three Rivers Stadium |
| 7.0 | Sun. Oct. 15 | 1:00pm | NBC | at Cleveland Browns | W 34–14 | 7–0 | Cleveland Municipal Stadium |
| 8.0 | Mon. Oct. 23 | 9:00pm | ABC | Houston Oilers | L 24–17 | 7–1 | Three Rivers Stadium |
| 9.0 | Sun. Oct. 29 | 1:00pm | NBC | Kansas City Chiefs | W 27–24 | 8–1 | Three Rivers Stadium |
| 10.0 | Sun. Nov. 5 | 1:00pm | CBS | New Orleans Saints | W 20–14 | 9–1 | Three Rivers Stadium |
| 11.0 | Sun. Nov. 12 | 9:00pm | ABC | at Los Angeles Rams | L 10–7 | 9–2 | L.A. Memorial Coliseum |
| 12.0 | Sun. Nov. 19 | 4:00pm | NBC | Cincinnati Bengals | W 7–6 | 10–2 | Three Rivers Stadium |
| 13.0 | Mon. Nov. 27 | 9:00pm | ABC | at San Francisco 49ers | W 24–7 | 11–2 | Candlestick Park |
| 14.0 | Sun. Dec. 3 | 4:00pm | NBC | at Houston Oilers | W 13–3 | 12–2 | Astrodome |
| 15.0 | Sat. Dec. 9 | 1:00pm | NBC | Baltimore Colts | W 35–13 | 13–2 | Three Rivers Stadium |
Question:
Which team did they play at Rich Stadium?
Answer:
at Buffalo Bills