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Shark Tank: the extra seat is never a swap

A rotating extra chair, added again and again instead of swapping out whoever's already sitting there. This ranks all seventeen seasons by how much that specific add-a-chair instinct actually reshaped the table, not just who ended up sitting in it.

Entries
17
Season span
S1–S17
Curated by
tiered.tv editor
Last revised
July 2026
No spoilers · reviewed

The 17, in order.

Ranked · Editor's pick
  1. #01

    The panel doubles into a six-person bench, five in the tank on any given night

    Two years of rotating a single extra seat becomes a full second tier of ownership: six credited sharks, five appearing per episode. It's the widest seat-count jump the format ever makes, and it becomes the lineup fans still call the classic six.
  2. #02

    The guest chair gets added, not carved out of anyone else's seat

    The classic six stay fully intact, but a rotating guest chair joins the table for the first time — not to cover an absence, just an added seat testing whether the bench can grow without anyone losing their spot.
  3. #03

    The fifth seat starts rotating instead of staying fixed to one shark

    The founding panel gets its first real crack: the original fifth chair shrinks toward part-time, a future full-timer starts guesting, and the show begins treating that seat as something to rotate rather than something to keep static.
  4. #04

    A years-long recurring guest finally gets a permanent seat at the table

    A guest shark who has cycled through the extra chair for years moves up to the main panel, while a longtime regular's run comes to a close. The biggest roster shift the format has made since the classic six first formed.
  5. #05

    A core seat sits empty for a stretch, and the guest rotation has to actually hold it down

    The classic six's steadiest years finally meet a real test: one seat goes missing for a run of episodes, and guest sharks fill in more heavily than at any point since the six-person bench came together.
  6. #06

    An ad hoc rotation becomes an official arrangement for the fifth seat

    Two sharks who'd been trading the extra seat informally now split it on a formal alternating basis, turning a workaround from the year before into a real structural piece of the panel.
  7. #07

    The added guest chair stops looking like an experiment and starts looking permanent

    A second year running the rotating guest seat turns a one-off tweak into an established piece of the format — the classic six hold, and the extra chair keeps cycling through names like it always belonged there.
  8. #08

    The newest full-timer settles in as the guest chair pulls its loudest names yet

    A recent promotion to the main panel gets its first full season to breathe, right as another longtime regular exits the rotation and the guest seat pulls names from further outside the usual investor circuit than ever.
  9. #09

    The original fifth seat's occupant departs for good, and a future regular covers an absence

    One founding shark leaves the panel entirely while another steps into a full-time seat, and a newcomer fills in for a missing regular rather than replacing her outright — turnover and coverage happening at once for the first time.
  10. #10

    The guest rotation pulls its highest-profile names yet, without touching the core six

    The classic six don't move an inch, but the rotating extra seat starts drawing names from well outside the usual entrepreneur-and-investor pool — the loudest the guest chair had gotten to that point.
  11. #11

    An anniversary season uses the guest chair to look backward instead of forward

    The tank's milestone year books guest sharks specifically to mark the occasion, including the format's first former contestant seated on the other side of the table — a celebratory use of the extra chair rather than a structural one.
  12. #12

    The five-seat panel that predates the whole added-chair idea

    Before any rotating extra seat existed to add or leave alone, the original five sharks simply filled the whole bench themselves — a plain baseline for every seat experiment that follows.
  13. #13

    A live broadcast breaks the format's rhythm more than any seat ever does

    The panel and the guest rotation stay exactly as expected, but one episode airs live for the first time — a genuine structural first that has nothing to do with who's sitting in the tank.
  14. #14

    The same six sharks, spaced six feet apart, with no seat news to speak of

    A pandemic bubble changes how the tank looks more than how it's staffed — the classic six sit distanced on a relocated set, but the seat arrangement itself doesn't move an inch.
  15. #15

    The six-person bench holds without a single seat changing hands

    A year after the panel widened to six, nothing about that arrangement needs adjusting — the same six trade the nightly rotation with zero arrivals and zero departures, proof the format found its shape fast.
  16. #16

    The panel returns to normal with the seat chart exactly where it left off

    After a year on a relocated, distanced set, the classic six and the rotating guest chair pick back up with no roster or seat changes at all — the format's most uneventful return to form.
  17. #17

    The quietest seat chart the format has ever run

    No arrival, no departure, no promotion, no empty chair to cover — just the established six-and-guest-chair machine humming along with nothing new to report on the seating front at all.
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Shark Tank: the extra seat is never a swap — tiered.tv