Former Hey Dad! star Robert Hughes has been granted leave to appeal against his convictions and jail term on child sex abuse.

High court judges Michelle Gordon and Stephen Gageler granted leave in Sydney on Friday, on the grounds of a dispute about tendency evidence admitted in the New South Wales and Victorian jurisdictions.

Hughes attempted last year to appeal against his six-year sentence and convictions in 2014 of 10 charges relating to sexual and indecent acts against four young girls in the 1980s and 90s, but it was thrown out.

The appeal will be heard in December.

