Channel 4’s catchup service 4oD attracted 3.4 million viewers in July, according to figures released for the first time by the broadcaster this week.
Popular Channel 4 shows including Hollyoaks and Eight Out of 10 Cats also drove an unspecified increase in 4oD programme views, to 29m in July.
4oD had 3.4 million average monthly viewers last month, according to the report, with Sirens and Come Dine with Me among the most popular catchup programmes.
Hollyoaks accounted for the vast majority of catchup views, with more than 1.8m plays in July, behind Eight Out of 10 Cats and Sirens with just over 1m each.
The broadcaster reported 242m 4oD views in last 12 months, a 20.9% increase on the previous year.
The report coincides with Channel 4 unveiling a new-look 4oD player, featuring bulletins from Channel 4 News for the first time.
The BBC iPlayer continues to dwarf its rivals in the video-on-demand market, reaching 153m programme requests in July. However, the iPlayer is available on more devices, such as the Sony PlayStation 3, and includes radio coverage.