EW.com said the co-stars of 1973's "Paper Moon" steered clear of each other for 25 years, largely due to Tatum's allegations of emotional and physical abuse against her father.
When Tatum attended last year's funeral for Ryan's longtime companion, actress Farrah Fawcett, he reportedly didn't recognize her and tried to ask her out for a date until she set him straight.
Variety said the pair would live together in Ryan's Malibu home for the planned docu-soap.
"Lost and Found" is to follow them as they go on auditions and dates, as well as to therapy sessions, EW.com said.
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