More people tuned in to watch Planet Earth II's desert episode than they did to see rapper Honey G being booted off The X Factor.
The Sir David Attenborough-narrated nature programme on BBC One drew an average of 9.7 million viewers, while ITV's singing show was watched by 6.1 million people, with a peak of 7.6 million.
The race for the top ratings spot on Sunday night was, however, won by Strictly Come Dancing once again as it enjoyed a peak of 11.4 million viewers, with an average of 10.6 million and 44.1% of the audience share.
Former shadow chancellor Ed Balls was the tenth contestant to be evicted from the show.
ITV's other flagship Sunday night show, I'm A Celebrity ... Get Me Out Of Here!, drew 9.1 million viewers, peaking with an audience of 10.1 million.
Model and radio presenter Lisa Snowdon left the jungle on Sunday evening, becoming the second celebrity to hang up their jungle hat.
Planet Earth II also enjoyed a peak audience figure of 10.1 million.