Question: For what season of Friends did the actors decide to submit themselves on the lead actor ballot rather than the supporting actor ballot?
About the article "Friends", section "Awards".

Candidate passages:
To maintain the series' ensemble format, the main cast members decided to enter themselves in the same acting categories for awards.
Beginning with the series' eighth season, the actors decided to submit themselves in the lead actor balloting, rather than in the supporting actor fields.
The series was nominated for 63 Primetime Emmy Awards, winning six.
Aniston and Kudrow are the only main cast members to win an Emmy, while Cox is the only actor not to be nominated.
The series won the 2002 Emmy Award for Outstanding Comedy Series, with nominations in 1995, 1996, 1999, 2000 and 2003.
The series also won an American Comedy Award, one GLAAD Media Award, one Golden Globe Award, three Logie Awards, six People's Choice Awards, one Satellite Award, and one Screen Actors Guild Award.
Ballot stuffing is when one person submits multiple ballots during a vote in which only one ballot per person is permitted.
The name originates from the earliest days of this practice in which people literally did stuff more than one ballot in a ballot box at the same time.
Detecting ballot-stuffing depends a great deal on how good the record-keeping is.
Most election systems match the number of persons showing up to vote with the number of ballots cast, and/or preparing the forms so that they are difficult to fake.
A common method still used in small village elections throughout the USA uses two ballot boxes and a single sheet of paper for a ballot.
After marking the ballot, the sheet is folded in half, then torn with each part dropped in the corresponding ballot box.
The number of marked ballots in one box will equal the number of ballot sheet headers in the other ballot box, thus preventing ballot stuffing.
In short, successful ballot-stuffing usually requires the misconduct of genuine registered voters and/or elections personnel.
Ballot-stuffing can be accomplished in a number of ways.
Often, a ballot-stuffer casts votes on the behalf of people who did not show up to the polls (known as "telegraphing"); sometimes, votes are even cast by those who are long dead or fictitious characters in TV shows, books, and movies (known as "padding").
Both practices are also referred to as "personation".
In earlier societies with little paperwork, dead people were kept "alive" on paper for the purpose of ballot-stuffing.
The family of the deceased often helped along, either to assist their party or for money.
Ballot stuffing is possible with one version of the Sequoia touchscreen voting machine.
It has a yellow button on the back side which when pressed allows repeated vote stuffing.
By design, pressing the button triggers the emanation of two audible beeps. 
A leading actor, leading actress, star, or simply lead, plays the role of the protagonist of a film or play.
The word "lead" may also refer to the largest role in the piece and "leading actor" may refer to a person who typically plays such parts or an actor with a respected body of work.
Some actors are typecast as leads, but most play the lead in some performances and supporting or character roles in others.
Sometimes there is more than one significant leading role in a dramatic piece, and the actors are said to play "co-leads"; a large supporting role may be considered a "secondary lead".
Award nominations for acting often reflect such ambiguities.
Thus, sometimes two actors in the same performance piece are nominated for Best Actor or Best Actress -- categories traditionally reserved for leads.
For example, in 1935 Clark Gable, Charles Laughton and Franchot Tone were each nominated for the Best Actor Academy Award for "Mutiny on the Bounty".
There can even be controversy over whether a particular performance should be nominated in the Best Actor/Actress or Best Supporting Actor/Actress category.
A title role is often but not necessarily the lead. 
The divided convention began the process of nominating a candidate.
Fillmore led on the first ballot, receiving 133 votes.
Scott placed a close second with 131 votes.
Webster received 29 votes.
Five more ballots were held with little change in the vote before the convention adjourned for the night.
The next day, delegates resumed voting.
On the 8th ballot, Scott took the lead with 133 votes to 131 for Fillmore, but neither received the necessary majority for nomination.
The convention was deadlocked, and a number of delegates unsuccessfully moved to allow a nomination with a plurality, rather than a majority, of votes.
After the 46th ballot, with Scott ahead by seven votes (but still without a majority), the delegates voted to adjourn for the night.
On the first ballot of the final day of the convention, the 47th overall, Scott still had not received the majority of votes necessary for nomination.
Several more votes were taken.
Fillmore lost votes on each successive ballot.
On the 52nd ballot, Scott received exactly half of the vote.
Scott was finally nominated on the next ballot, obtaining a majority when several delegates from New England and Virginia switched their support. 
The following is a list of California ballot propositions broken down by decade.
Propositions can be placed on the ballot either through the initiative process or by a vote of the state legislature.
Propositions were added to the California constitution as part of the ethics reform instituted by Governor Hiram Johnson in the early 1910s.
Prior to the November 1982 general election, proposition numbers started with "1" for each election.
After November 1982, subsequent propositions received higher and higher numbers until November 1998 when the count was reset.
Starting with November 1998, the count is reset in 10-year cycles.
In October 2011, Governor Jerry Brown signed into law a bill which requires all future ballot propositions to be listed only in general elections (held in November), rather than during any statewide election.
Two propositions had already qualified for the next statewide election (which was the June 2012 presidential primaries) prior to the signing of the law, making the June 2012 primaries the last state-wide non-general elections in California to have statewide propositions on the ballot.
List of California ballot propositions 1910–1919  List of California ballot propositions 1920–1929  List of California ballot propositions 1930–1939  List of California ballot propositions 1940–1949  List of California ballot propositions 1950–1959  List of California ballot propositions 1960–1969  List of California ballot propositions 1970–1979  List of California ballot propositions 1980–1989  List of California ballot propositions 1990–1999  List of California ballot propositions 2000–2009  List of California ballot propositions 2010–2019