Patrick Hipes Executive Managing EditorCBS’ unscripted combo Big Brother and Love Island helped the network to the top ratings spot Thursday, on a night President Donald Trump’s 70-minute speech from the White House lawn in primetime wrapped the Republican National Convention.Big Brother scored a night-leading 1.0 rating and 4.01 million viewers, with the all-star edition off a tenth from Wednesday’s episode, which had matched season-best numbers in the demo.