You can, but it's highly recommended to play Blu-Rays on a 1080p TV in order to get the best High Definition possible.
Yes, the Toshiba C55T does play the bluray.
Bluray handles all HD formats. As 720p is one of the HD formats, it will play it without a problem. Bluray will also handle 1080i and 1080p formats as well as standard definition. Depending on the set up of the player, the output will be in the format recorded on the disc or it may convert all formats to a single format such as 1080p. As an HD television will also handle any of the formats, it is worth experimenting with the set up to see if 720p discs are displayed better when the player outputs the native format or in a converted format.
Yes all bluray drives will play cds.
A DVD player cannot play a BluRay disc. A BluRay player can play both BluRay discs and DVDs.
No
A 720p television is a high definition one. That means that it will display both 720 and 1080 line material. It will also handle standard definition video - 576 or 480 line pictures. A Bluray player will play both high definition and standard definition discs. The two devices are designed and built to be fully compatible with each other so the television should operate flawlessly.
720p is one of the HD formats so it will display HD quality. Although most Bluray content is generated as a 1080 signal, some is produced as 720p. Either will work on any HD television although using a television with a native 1080 line display will deliver the best resolution available for any current HD content.
Yes, BluRay DVD players also play non Blu-Ray DVDs with no problem.
No. You need a BluRay player that specifically says it can read 3-D disks
A television capable of displaying 720p is a high definition one and therefore will handle Bluray disks, whether they contain 1080 or 720 format video signals.
Yes
Currently, no. You should get a PS3 to do that.