Many UK media companies pulled advertising after the Queen's death and during her funeral.
Analysts estimate the ad blackouts could cost media companies more than $100 million in lost revenue.
Experts also said media companies could benefit from extra print sales and pent-up advertiser demand.
Douglas McCabe, CEO and director of publishing and tech at Enders Analysis, estimated the lost advertising could equate to around 15 million pounds ($17 million) a day for TV companies, 2 million pounds ($2.3 million) for radio, 2 million pounds for billboard owners, and 1 million pounds ($1.1 million) for newspapers.
But even when advertising returns, UK media companies remain in a tight spot due to soaring inflation and a gloomy economic outlook.