Male main character time travels and says conundrum

Eighties teenager Marty McFly is accidentally sent back in time to 1955, inadvertently disrupting his parents' first meeting and attracting his mother's romantic interest. Marty must repair the damage to history by rekindling his parents' romance and - with the help of his eccentric inventor friend Doc Brown - return to 1985.

Josh Gates goes on the adventure of a lifetime when he and Christopher Lloyd set off to track down the most iconic movie car in Hollywood history, The DeLorean Time Machine from "Back to the Future," and deliver the vehicle to Michael J. Fox.

The Doctor, Steven and Dodo land on an alien world in this animated reconstruction of a lost 1966 Doctor Who adventure. There, they meet two peoples; the cutthroat Savages, and civilised Elders, who claim to know all about the Doctor and his travels. Is all as it seems, and will the TARDIS crew come out in one piece if it isn't?

The Doctor and his companion travel across time and space encountering incredible friends and foes.

Theorizing that one could time travel within his own lifetime, Dr. Sam Beckett stepped into the Quantum Leap accelerator and vanished... He woke to find himself trapped in the past, facing mirror images that were not his own and driven by an unknown force to change history for the better. His only guide on this journey is Al, an observer from his own time, who appears in the form of a hologram that only Sam can see and hear. And so Dr. Beckett finds himself leaping from life to life, striving to put right what once went wrong and hoping each time that his next leap will be the leap home.

H3ll4sl00tz is ready to take his wife Baby Sid to a kinky sex party, but Baby Sid is just wrapping up communications with NASA. She just finished her interdimensional travel device and it's ready for testing. She tells H3ll4sl00tz she just needs to know if it works, so she presses the big red button. The kinky couple is immediately warped into another dimension where Joanna Angel and Lance Hart are boring office workers. Sid deduces that in order for them to get home, they are all have to have anal sex... The foursome continues to warp from timeline to timeline where Joanna and Lance are different people each time (cell mates, a young couple, doctors...) and in each setting they have a bisexual anal foursome with a couple DPs mixed in.

A wild hormonal teenage boy questions the possibility of time travel as he observes from afar a bald elderly man whom he believes (or fears) might be himself from the future.

The year is 2047. Humanity is on the verge of extinction. One man has been chosen to be the first to attempt time travel. The only chance for survival rests on his shoulders. However, he has other plans.