Television and Home Theater

Here is where consumers get bogged down with the terminology and
potential choices. Where once there was only the good, old-fashioned
25-inch tube TV, now consumers have the choice of not only a dozen
sizes from 26-inches to 73-inches, but also have to choose between
plasma, LCD, rear projection, and front projection.

The size of the television or video display device you get really
depends on the size of the room environment you will be using it in and
how close you will be sitting to the screen.

I have a hitachi ultravision 60v710 and when I turn it on, after about 10 seconds to a minutes it goes off.. then it come on and goes off, continuously,. Then in the meantime of that, it sometimes changes to like a bluish green tint, and sometimes it gets distorted at the bottom of the screen... What could this be?

All:

Two questions:
1) I found Encompass Parts (https://www.encompassparts.com) that seemingly provide SONY made components. For the STK4278-L IC on the D board, they have:

SONY Part Number 8-749-923-16 STK4278-L $62.82
Japanese semi's (likely Sanyo) 8-749-923-16 STK4278-L $19.95
SANYO is the brand carried by almost all sites as "genuine SANYO."

Some sites offer Chinese STK4278-L $6.95

Is there a real difference between SANYO and SONY other than brand cost?