Six Nations Rugby today confirmed that it has entered into exclusive discussions with BBC and ITV after an agreement in principle was reached relating to all three Six Nations Championships (Men’s Guinness Six Nations, Women’s Six Nations and Men’s Under-20’s).

https://www.sixnationsrugby.com/2021/05/21/six-nations-rugby-enters-into-exclusive-discussions-with-bbc-and-itv-to-share-broadcast-rights-for-all-six-nations-championships-in-a-multi-year-agreement-for-the-uk-market/