In the key commercial demographic of 25-54, 133,000 viewers watched the debut episode, compared to 165,000 last year. However, it still beat the competition to become the most-watched programme in its timeslot.
Monday night saw those figures decline further with 118,000 settling in for night two of The Bachelor.
The numbers reflect an overall trend across the industry, which has seen the total number of viewers watching traditional television decline in recent years.
MediaWorks remained positive about the series' performance, saying: "Nearly 400,000 viewers tuned in this week, with live streams of the premiere up 50 percent year-on-year and an average audience of over 124,000 across episodes one and two."
