@Peter_pbn​ 

I for my part would consider TV-series with at least 10 seasons. I think that all TV-series shorter than 5 seasons wouldn't fit, if I had the idea. Half a decade isn't really long, but what's the measurement? That's a good question. And I guess that everyone has his/her own definition of time expansion. It would be good to define this issue in the criteria.

@Breumaster​ 😀

Count  seasons or episodes ??

Daytime soaps - 5 days a week

sitcoms / cops / westerns  - 1 evening each week                

As the World Turns (1956-2010)
https://www.imdb.com/title/tt0048845/

https://www.imdb.com/title/tt0048845/reference/

The focus in on the upper class Hughes and Stewart families 

Elizabeth Hubbard ...   Lucinda Walsh   (1,975 episodes, 1984-2010)

Jon Hensley           ...   Holden Snyder   (1,962 episodes, 1985-2010)
Ellen Dolan            ...   Margo Hughes   (1,844 episodes, 1988-2010)
Colleen Zenk         ...   Barbara Ryan     (1,835 episodes, 1978-2010)
Don Hastings        ...   Bob Hughes       (1,834 episodes, 1960-2010)

and many oithers

These may or may not work on other shows with many seasons or episodes

I did not look

.

Yes, but it's about the definition of "long lasting" in each TV-series mentioned in the poll. How long has to be "long" for the suggestors? Everyone has her/his own definition of "long". With a stated criterion of how long "long" is, everyone can better think off examples.

@ACT_1​ @Peter_pbn @Breumaster Right now I'm only considering a non-soap series and that second series last at least 7 seasons. If I can't get enough to fill the list I may decrease the threshold to six seasons which would open up Michael J. Fox, and Bryan Cranston. I will add David Duchovony and Michael Landon from below.

Thank you both!

@ACT_1​ Corrected typo and added not to description in post.

Thanks

@Breumaster​ 

ACT_1
Mon, Jun 15, 2020
[ Staff: Add episode count ? ? ]

Add episode count to total 'Actor: TV credits' not just count TV shows
This would be more accurate account of the actor's work
like ?
Actor: TV (79 TV shows,  ___ episodes)

https://community-imdb.sprinklr.com/conversations/imdbcom/staff-add-episode-count/5f4a7ca18815453dba0cffe6

.

There aren't very many that make it past 5 seasons, AND are still funny. They tend to get silly as they spiral towards the inevitable shark jump

@mariojacobs​ Thanks, I've added them both. However with Carroll O'Conner since he played the same character in both series I combined them as the first title and made his second title In the Heat of the Night

@ACT_1​ Thanks Added to the list

@mariojacobs​ Added Johhny Galecki to the list since he was a regular on TBBT. Laurie Metcalf and Sara Gilbert were only recurring characters that did not appear in most episodes.

@mariojacobs​ 😀

     Note: Currently listed to a seven season or more stint on the second series.

Only 5 seasons ??

T.J. Hooker (1982-1986)
https://www.imdb.com/title/tt0083486/

https://www.imdb.com/title/tt0083486/reference/

William Shatner ...   Sgt. T.J. Hooker (90 episodes, 1982-1986)
.

@ACT_1​ 

Mr. Bean

https://www.imdb.com/title/tt0096657/?ref_=fn_tv_tt_4

after

https://www.imdb.com/title/tt0084988/?ref_=fn_al_tt_1

Blackadder (1982–1983)

@mariojacobs​ 😀

? ?

Rowan Atkinson
https://www.imdb.com/name/nm0000100/

Blackadder (1982-1983)
https://www.imdb.com/title/tt0084988/

https://www.imdb.com/title/tt0084988/reference/

https://www.imdb.com/title/tt0084988/episodes  1 Season

Rowan Atkinson ...   Edmund, Duke of Edinburgh (7 episodes, 1983-2003)

Mr. Bean (1990-1995)
https://www.imdb.com/title/tt0096657/

https://www.imdb.com/title/tt0096657/reference/

https://www.imdb.com/title/tt0096657/episodes   1 Season 

Rowan Atkinson ...   Mr. Bean (15 episodes, 1990-1995)

.

@mariojacobs​ T.J. Hooker and Mr. Bean didn't last at lead seven seasons. For now I'm keeping the requirement that the second series last at least seven seasons.

@Jessica​ Thanks. Added your suggestions of 7+ seasons. Will keep Courtney Cox in mind if I can't others with current criteria for poll.

@ACT_1​ Added to list.

Thanks

@Pencho15​ Made it to 35 with these suggestions. Thank you!

@ACT_1​ List is full. Thanks anyway!

@themoviesmith​ If you want to consider more options, maybe you can add the minimum series length to 8 seasons, or add some kind of parameter for the first series they appeared on.

@Pencho15 @ACT_1 I cleaned up the list which had once choice under seven seasons that got through and am adding Ron Howard. If I move the pre-requisite to eight seasons or add another parameter  for the first series the list will lose a lot of it's current entries.

@Jessica​ii can't edit it right now on my phone. Will let you know when it's done

@themoviesmith​ Bump for corrections.

@Jessica @Pencho15​ I've corrected the list. Just got back from a trip and finally got access to my desktop.

Thank you both!

@Pencho15​ Thank you

@themoviesmith​ Please remember to move this thread from the idea to the praise category

@Pencho15​ Done

@themoviesmith​ You almost made it to the end without a mistake. The final option is missing a bracket and link preface.

Dennis Weaver - "McCloud" , 1973 NBC