[time-nuts] New Years Eve TV countdown

Mark Sims holrum at hotmail.com
Thu Jan 1 16:31:28 EST 2015

Also,  ever since the infamous Janet Jackson "wardrobe malfunction" almost all live TV in the US is on a mandatory delay of several seconds so that offensive (?) images and language can be censored.
I have a DTV-PAL over-the-air DVR box (made by Dish/Channelmaster, long since discontinued).  Earlier firmware versions chose one channel's PSIP data to use as its time source.  If that channel was broadcasting bogo-time,  all your recordings would be off.  And the chance of bogo-time being broadcast is huge.   They later changed the time algorithm to use a median of all the channels it sees.  This gets the typical error to a few seconds.  
They have a diagnostic screen that shows the PSIP time being broadcast by all the stations (actually the first 20 stations).  Several stations have random times,  some are off by +/- an hour,  others are GMT.  The stations that are close are typically +/- a minute or so. 		 	   		  

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