Marco Pierre White is not enough of a drawcard, as <i>Masterchef: The Professionals</i> bleeds viewers.

Marco Pierre White is not enough of a drawcard, as Masterchef: The Professionals bleeds viewers. MCP S1 Ep1 Marco Pierre White3.jpg

Network Ten's MasterChef franchise hit one of its all-time lows on Tuesday night with its Professional series being out-rated by its nightly news.

MasterChef: The Professionals, which has British celebrity chef Marco Pierre White overseeing well-credentialled cooks, pulled just 533,000 viewers to be 19th overall.

It's a far cry from the one million-plus numbers the show attracted for its opening three episodes.

The culprit is the Seven Network's ratings bonanza My Kitchen Rules (MKR), which is siphoning off viewers.

MKR claimed top spot on Tuesday with 2.128 million viewers, continuing on from its two million-plus viewers on Monday.

Both MKR and MasterChef run head-to-head in the 7.30pm timeslot on Monday and Tuesday, while the Nine Network's reality series The Block: All Stars also clashes with the two cooking shows between 7.30-8pm.

The Block, which started Monday, pulled about 950,000 viewers on both nights.

Both The Block and MKR are seriously hurting MasterChef: The Professionals.

Ten's nightly news was 14th (671,000 viewers) on Tuesday while Eddie McGuire's Hot Seat, which is the lead-in show to the Nine Network's 6pm news, had bigger numbers.

Hot Seat was 17th with 554,000 watchers.

On Sunday night, when MKR and The Block were not being screened, The Professionals attracted 1.124 million viewers.

The official ratings period begins in earnest on Sunday.

AAP