And when I pull up the TV Title Sequence comp in the Composition panel and choose Fit, I still get 33.3% and the black bars.
| I'm sorry, but I don't understand. How would adding a solid fix this problem? |
it won't. this is only to demonstrate that you have HD720 asset or assets (or scaled to about that size) in an HD1080 Composition. you are using a big box for an element or elements that don't fit the box. you can either make your box smaller or make your element or elements bigger. I assume you want your element or elements to be bigger.
The only question is - is this just that one asset that Szalam mentioned? or is the all of them? if it's just that element, go and do as Dave suggests and fit it to the comp. if not, read on because you need to scale your footage up* and there are a few ways to go about this:
here's one:
1. go to composition settings and change the width to 1280. it will change the height to 720.
2. select that composition in the project panel
3. go to scripts->scale compositions and click it
4. select new comp width and enter 1920 and click scale
DONE!
here's another way:
1. create a Null layer (layer->new->Null)
2. select all the layers Ctrl+Shift+A, deselect the null (Ctrl+click)
3. under the parent column select the null as the parent
4. scale the null to 150%
5. delete the null if you want
here's another for the really lazy 
1. in "drop footage here" comp, scale "tv title sequence" to 150%
2. press the collapse switch. make sure things don't look funky. if they do - uncheck it
* of course scaling pixels to 150% of their true size will soften them. it depends if you have scaled down some footage - say scaled them in Ae to 60% to fit the composition (which upon re-scale will be about 100% scale i.e full quality), or if all your layers are 100% scale in the nested comp. anyways, maybe evening softening the images as a result is good enough for you because the other option is prepare all your assets from the start as HD1080 size and replacing them...
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