He was sacked by United in December after the club’s worst start to a season since 1990 and won three trophies during his two-and-a-half year tenure at Old Trafford.
“Jose is one of the greatest football managers of all time, and we hope that his expert analysis and charismatic personality will be enjoyed by our millions of viewers,” a beIN spokesman said in a statement.
Mourinho had been linked with a return to former club Benfica after the Lisbon giants fired coach Rui Vitoria last week, but the 55-year-old told Correio da Manha earlier on Thursday that he would not take the job.
“I don’t have any intention of coming back to work in Portugal,” he told the newspaper. “I’m fine at the moment.”