Brian Steinberg Senior TV Editor Tucker Carlson is out at 8 p.m. on Fox News Channel, and the network hopes that a host of blue-chip advertisers that for years avoided his controversial hour will soon come back in. Since Carlson’s stunning exit last month, a timeslot that has been shunned by many Madison Avenue stalwarts seems as if it is being embraced. Procter & Gamble, one of the nation’s largest and most influential advertisers, has been running ads in “Fox News Tonight,” the network’s new 8 p.m. program, for female-skewing products like Venus razor blades by Gillette and Secret underarm deodorant. Also showing up in commercial breaks: Novo Nordisk’s trendy medication Ozempic, and Scotts Miracle-Gro.