Table:
text: 1969–70 Chelsea F.C. season
First Division
First Division
Date_ Opponent Venue Result_ Attendance
27 December 1969 Crystal Palace A 5-1 49498
10 January 1970 Leeds United H 2-5 57221
17 January 1970 Arsenal A 3-0 51338
31 January 1970 Sunderland H 3-1 38775
11 February 1970 Derby County A 2-2 35109
25 February 1970 Newcastle United H 0-0 35341
28 February 1970 Coventry City A 3-0 37448
7 March 1970 Nottingham Forest H 1-1 55227
17 March 1970 Stoke City H 1-0 28996
21 March 1970 Manchester United H 2-1 61479
25 March 1970 Sheffield Wednesday H 3-1 29590
28 March 1970 Everton A 2-5 57828
30 March 1970 West Bromwich Albion A 1-3 31207

text: 1969–70 Chelsea F.C. season
First Division
First Division
Date_ Opponent Venue Result_ Attendance
4 October 1969 Sunderland A 0-0 24216
11 October 1969 Derby County H 2-2 51421
18 October 1969 West Bromwich Albion H 2-0 34810
25 October 1969 Newcastle United A 1-0 40088
1 November 1969 Coventry City H 1-0 38899
8 November 1969 Sheffield Wednesday A 3-1 18044
15 November 1969 Everton H 1-1 49895
18 November 1969 Ipswich Town A 4-1 20935
22 November 1969 Nottingham Forest A 1-1 23808
6 December 1969 Manchester United A 2-0 49344
13 December 1969 Wolverhampton Wanderers A 0-3 26775
20 December 1969 Manchester City H 3-1 34791
26 December 1969 Southampton H 3-1 41489

Question: Which date has a viewership greater than 51,338 and a Manchester United opponent in Chelsea FC First Division season 1969-70?