NBC's experimental station W2XBS in New York City went off the air for several months in mid-1940 for technical reasons. It returned in October 1940 but The New York Times did not resume publishing television listings until February 1941. And when the paper did start publishing listings again, they were sporadic, perhaps because the station was only on the air sporadically. Here are all the listings from February 1941:

Wednesday, February 12th, 1941 [1]
2-5PM: Teset Pattern
7:30-8:30PM - Test Pattern
8:30PM - Film, "Numbered Woman," with Sally Blaine, Lloyd Hughes.

Saturday, February 15th, 1941 [2]
2-5PM: Test Pattern
7:30-8:30PM - Test Pattern
8:30PM - Pick Up of Events at N.Y. Athletic Club Track Meet at Madison Square Garden

Friday, February 21st, 1941 [3]
7:30-8:30PM - Test Pattern
8:30PM - Pick-up of Wrestling from Jamaica Arena

Saturday, February 22nd, 1941 [4]
2-5PM: Test Pattern
7:30-8:30PM - Test Pattern
8:30PM - Pick Up of Events at NAAU Track Meet, Madison Square Garden

Friday, February 28th, 1941 [5]
7:30-8:30PM - Test Pattern
8:30PM - Pick-up of Wrestling from Jamaica Arena

Works Cited:
1 "Radio Today." New York Times. 12 Feb. 1941: 42.
2 "Radio Today." New York Times. 15 Feb. 1941: 30.
3 "Radio Today." New York Times. 21 Feb. 1941: 38.
4 "Radio Today." New York Times. 22 Feb. 1941: 30.
5 "Radio Today." New York Times. 28 Feb. 1941: 38.