20 mins
Depends which country you're in ! In the UK, commercials between programs are average 30 seconds each - so you'd get 16 in an 8 minute period.
TV timeouts occurs after the first deadball situation after 16 minutes left in the period, 12 minutes left in the period, 8 minutes left in the period, and 4 minutes left in the period. Should a team call a time out during a period and the broadcaster go to commercial, one of the TV timeouts is deleted from the schedule.
paintbox era
Halftime during a NFL playoff game lasts for 30 minutes. Each period or quarter in a game lasts for 15 minutes.
There are three (3) twenty (20) minute periods during regulation time. One (1) five (5) minute overtime period during the regular season, and an unlimited number of twenty (20) minute periods in playoff overtime.
A half or period is 45 minutes with additional minutes added for stoppage. Which can make a period up to 50 or more minutes.
In professional hockey there is 20 minutes a period in smaller leagues it varies.
if your asking how long it takes them to reproduce, well they reproduce once about every 20 minutes
20 per period
It was thought to be the time that would be easiest to recognize during the short period that TV commercials showed an advertised watch face. I believe Timex set this "standard" back in the 1960's.
An overtime period in college basketball is 5 minutes.
either a raised period or simply an x