| 03 Sep 78 | r01        | Buffalo BillsBuffalo Bills | 17 - 28 | Pittsburgh SteelersPittsburgh St |
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| 10 Sep 78 | r02        | Pittsburgh SteelersPittsburgh St | 21 - 10 | Seattle SeahawksSeattle Seaha |
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| 17 Sep 78 | r03        | Cincinnati BengalsCincinnati Be | 3 - 28 | Pittsburgh SteelersPittsburgh St |
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| 24 Sep 78 | r04        | Pittsburgh SteelersPittsburgh St | 15 - 9 | Cleveland BrownsCleveland Bro |
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| 01 Oct 78 | r05        | New York JetsNew York Jets | 17 - 28 | Pittsburgh SteelersPittsburgh St |
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| 08 Oct 78 | r06        | Pittsburgh SteelersPittsburgh St | 31 - 7 | Atlanta FalconsAtlanta Falco |
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| 15 Oct 78 | r07        | Cleveland BrownsCleveland Bro | 14 - 34 | Pittsburgh SteelersPittsburgh St |
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| 24 Oct 78 | r08        | Pittsburgh SteelersPittsburgh St | 17 - 24 | Tennessee TitansTennessee Tit |
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| 29 Oct 78 | r09        | Pittsburgh SteelersPittsburgh St | 27 - 24 | Kansas City ChiefsKansas City C |
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| 05 Nov 78 | r10        | Pittsburgh SteelersPittsburgh St | 20 - 14 | New Orleans SaintsNew Orleans S |
| 13 Nov 78 | r10        | Los Angeles RamsLos Angeles R | 10 - 7 | Pittsburgh SteelersPittsburgh St |
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| 19 Nov 78 | r12        | Pittsburgh SteelersPittsburgh St | 7 - 6 | Cincinnati BengalsCincinnati Be |
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| 28 Nov 78 | r13        | San Francisco 49ersSan Francisco | 7 - 24 | Pittsburgh SteelersPittsburgh St |
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| 03 Dec 78 | r14        | Tennessee TitansTennessee Tit | 3 - 13 | Pittsburgh SteelersPittsburgh St |
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| 09 Dec 78 | r15        | Pittsburgh SteelersPittsburgh St | 35 - 13 | Indianapolis ColtsIndianapolis |
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| 16 Dec 78 | r16        | Denver BroncosDenver Bronco | 17 - 21 | Pittsburgh SteelersPittsburgh St |
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| 30 Dec 78 | QF        | Pittsburgh SteelersPittsburgh St | 33 - 10 | Denver BroncosDenver Bronco |
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| 07 Jan 79 | SF        | Pittsburgh SteelersPittsburgh St | 34 - 5 | Tennessee TitansTennessee Tit |
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| 21 Jan 79 | Final        | Dallas CowboysDallas Cowboy | 31 - 35 | Pittsburgh SteelersPittsburgh St |