Table:
text: 1988 Denver Broncos season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
10 November 6, 1988 Kansas City Chiefs W 17–11 74227
11 November 13, 1988 Cleveland Browns W 30–7 75806
12 November 20, 1988 at New Orleans Saints L 42–0 68075
13 November 27, 1988 Los Angeles Rams W 35–24 74141
14 December 4, 1988 at Los Angeles Raiders L 21–20 65561
15 December 11, 1988 at Seattle Seahawks L 42–14 62838
16 December 17, 1988 New England Patriots W 21–10 70910

text: 1988 Denver Broncos season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
1 September 4, 1988 Seattle Seahawks L 21–14 75986
2 September 11, 1988 San Diego Chargers W 34–3 75359
3 September 18, 1988 at Kansas City Chiefs L 20–13 63268
4 September 26, 1988 Los Angeles Raiders L 30–27 75964
5 October 2, 1988 at San Diego Chargers W 12–0 55763
6 October 9, 1988 at San Francisco 49ers W 16–13 61711
7 October 16, 1988 Atlanta Falcons W 30–14 75287
8 October 23, 1988 at Pittsburgh Steelers L 39–21 49811
9 October 31, 1988 at Indianapolis Colts L 55–23 60544

Question: In what week of the 1988 season were 63,268+ viewers and the Kansas City Chiefs the Denver Broncos opponent?