According to the rumour, the episodes from the 1964 serial Marco Polo, starring original Doctor William Hartnell, have surfaced. Of the 97 missing episodes, Marco Polo's are the earliest.

The First Doctor, William Hartnell, and his companions join the caravan of the legendary explorer Marco Polo in this seven-part 'lost' story from the programme's original 1964 series. The TARDIS ...

The First Doctor, William Hartnell, and his companions join the caravan of the legendary explorer Marco Polo in this seven-part 'lost' story from the programme's original 1964 series. The TARDIS ...