Ryan and Tatum Pledge to Continue Therapy on the Finale of 'The O'Neals' (VIDEO)

Ryan and Tatum O'Neal have a lot of issues to work through, more than they could get to in one season of a reality TV show. On the finale of 'Ryan & Tatum: The O'Neals' (Sundays, 10PM on OWN), the recently reconciled father and daughter pledged to each other that they would continue in therapy together, even after the cameras turned off. Ryan seemed reluctant to have the therapy on camera. "Is it healthy to air your dirty laundry?" he said. "And should family members do that?" Tatum disagreed that there were "a lot of dirty laundry aspects to it." Still, she brought some perspective to the therapeutic process. "We're not able to fix the past," she said. "The past is the past. And I know, dad, how you really feel. I know you have great regret." In the end, they agreed to keep seeing the therapists, if it would help them stay together." It would be terrible not to have her in my life," said Ryan. "I know, because it has been." He added that Tatum might not always have to come, but he might need her to come sometimes. "Maybe I'll need you," he said, before thinking for a second and saying, "I do need you, Tatum."

Deleted Scene: Ryan and Tatum O'Neal Go Dancing on 'The O'Neals' Finale (VIDEO)

Ryan and Tatum O'Neal 's rocky relationship has seen quite a few ups and downs over the years, and viewers have gotten more than a glimpse into the madness with 'Ryan and Tatum: The O'Neals,' their OWN docu-series. Meant to repair their father-daughter bond and end their 25-year estrangement, the eight-hour run of 'The O'Neals' actually managed to have some heart along with the ongoing drama and re-hashing of arrests, addictions and betrayals. So where will Ryan and Tatum end things in this weekend's finale (airs Sun., 10PM ET on OWN)? And is a true reconciliation really possible after so many years and so many issues? Judging by this deleted scene, it looks like it. Instead of fighting or sitting in a therapy session, this finale sneak peek shows them bonding in a different way: at a Hollywood dance class. There's sweat, weird spoken word-style messages and plenty of arm flailing ... in short, it's kind of awesome.

'The O'Neals': Ryan Still Doesn't Get How Tatum Felt Abandoned (VIDEO)

The rift on 'Ryan & Tatum: The O'Neals' (Sun., 10PM ET on OWN) isn't something that's going to be able to be healed over a few short episodes. But it was encouraging seeing them talk openly about what happened during Tatum's teenage years, even if Ryan still doesn't seem to get it. At least he didn't run away this time. When she talked about being left alone, he tried to argue that she wasn't. She had her mother, who'd already given up custody of Tatum to Ryan, as well as "many, many friends," he told her. "You were a famous person." "You hear how crazy that sounds," she said to him, but he didn't. He refused even to acknowledge that she was still a kid at the time, talking about how sophisticated she was for 17, and how she got her own apartment.

Tatum O'Neal Talks Parenting Father Ryan on 'The O'Neals' (VIDEO)

Sometimes, parents do the darnedest things. Like in one episode of 'Ryan and Tatum: The O'Neals,' in which Ryan taunts his daughter, Tatum, a recovering alcoholic, with a bottle of tequila. Tatum spoke about that incident Wednesday on 'Access Hollywood Live' (weekdays, syndicated on NBC) and how it represents something of a role reversal in the traditional father/daughter relationship. Tatum acknowledged that her father has a quirky sense of humor that is sometimes misunderstood. "It's terrible, but at the same time, that's my dad," said Tatum. "He's funny. But you see how I react on the show, I go, like, 'Oh my god, that is not funny.' So in a way, I can be the parent, too."

Tatum O'Neal and Chelsea Handler Talk About Their Difficult Fathers (VIDEO)

The roles were a little reversed with Tatum O'Neal on 'Chelsea Lately' (Weeknights, 11PM ET on E!). O'Neal has been rather famously estranged from her difficult father, Ryan, for decades. That relationship is now the subject of the series 'Ryan and Tatum: The O'Neals.' But O'Neal wanted to talk about Chelsea Handler's father. "He's a real hot mess," Handler admitted. "Right now he's an even bigger mess than your father." Tatum then asked if the story was true that Handler's father had gotten them upgraded to first class on a flight by saying he and Chelsea were married.