Well, ..., generally I've found that anything (these days) with a recognizable label on it (like NatGeo or Discovery) is substandard in quality and grossly over priced. I'm sure the Celestron binoculars are better (and probably cheaper). However, you should take care any set of binoculars over 50mm (in objective size) are usually too heavy for the average person to hold steady you will most likely need a Trapezoid, Tripod, or Monopole to hold them steady. As a result you may want to consider a pair of 10x50 Binoculars (~$34.95 USD Wal*mart) or 20x50 (~$52.95 USD Amazon).
Read the write-up below on how to choose a pair of binoculars.
--- Write Up ---
I've owned a pair of Bushnell 10X50 Powerview binoculars for the past 11+ years and I love them. I've used them for astronomy as well as terrestrial observing and they've always been great! They still work as well today as the day I received them as a gift 11+ years ago. I haven't tried the 20x50's but if they work for you then get them. Some things you should look for in binoculars are:
1) The image quality should e consistent from edge to edge, top to bottom, and throughout the field of view ... no 'coke bottle' effect.
2) Color rendition should be exactly the same as normal vision. So avoid binoculars with Ruby tinted objectives.
3) The Image should be correct both up and down and left and right. No inverted images
4) Items (1,2,3) above should remain true through (once focused) zoom.
5) Items (1,2,3) should remain in focus through zoom in and zoom out operations.
6) The binoculars should pass the 'cable test' through zoom in and zoom out operations.
Cable test - find both thin vertical an horizontal cables with binoculars. As you observe the cables in up and down, and side to side, transitions from sides to side and up and down. The cables should display no chromatic distortion (red, yellow, green, or blue) on either side of the cables.
7) They should be comfortable to use and hold not bulk and difficult to handle. Anything beyond 50mm begin to be difficult to handle which is why 10x50, 16x50, and or 20x50's are great general purpose binoculars.
8) At least one or more oculars should be "focusable"
9) Both oculars should have comfortable cups for your eyes and the oculars should be at least 0.5" (1/2 inches) diameter (or better)
10) Focus both in and out and return to focus. The focus should "snap-in" and images in the feild of view should have a "crisp" or sharp image.
No fuzzy images except for things very close. Far away items should be in focus. If you think of binoculars as being an extension of your eyes then that is how they should work.
11) The primary objectives should be free of any marring, bubbles or grit in the glass, and should be multi-coated (bluish green in color).
12) Turn the binoculars around and (with the lens caps off) look thought the main objectives to the oculars (you may need to focus slightly. The oculars should be free of any marring, bubbles or grit in the glass.
13) Don't buy the "straight barrel" (roof prism) type binoculars. By the traditional type (porro prism). The Porro Prism type binoculars are optically better performers.
If your binoculars fail any of these tests don't buy them or return them immediately. BTW, Wal*Mart sells the Bushnell 10X50's for $34.95 and the Bushnell 20x50's can be found on Amazon for $52.95 which is a great deal.