What causes the aspect ratio to be different?

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Old movies were filmed in the 4:3 ratio. That gives you blank areas at the left and right on your widescreen TV. Not-so-old movies were filmed in some variation of a widescreen format, but they were still standard-definition, which gives you the "letterbox" look--blank areas on all 4 sides. Modern HD video fills your 16:9 screen from corner to corner.

So it's not the channel, but what the channel is broadcasting at the moment.

As you've noted, some commercials, promotions, brief announcements, etc. are presented in 4:3 or letterbox because the producers didn't pay the extra money to record them in HD....Show more

the centre digits are % of the width measured rim to rim, now not the tyre, this components the peak of the tyre from the backside of the rim to the apex of the crown, in assessment to a vehicle tyre the placement it rather is the wall intensity. hence with the aid of making use of installation a wider tyre you will develop the peak of the tyre yet devoid of the reinforcment of the area wall. hence if the tyre is wider the tyre rides better and the dealing with suffers. in case you stored a similar length tyre yet better the rim width the trye would desire to experience shrink on the wheel and the sidewalls would desire to be better stablized, hence there may be a soft develop in dealing with, yet as quickly as you pass to large you will make the motorcycle unhandleable in something yet a at as quickly as line. this is better useful to now not regulate the width installation of a tyre yet in fact the component ratio of the tyre....Show more

Not all of the channels and tv shows have changed to the HD settings yet. so not all are going to be fitting your whole screen....Show more

Also look for if your set has an auto aspect feature in the menu....Show more

watch "movies now" types of channel awesome hd & crystal clear 5.1 surround sound....Show more