Although Edward "Bear" Grylls is entertaining he is a dare-devil and makes for a very poor survival instructor posing wrong and often dangerous solutions to survival scenarios.

It is usually most appropriate to look up a survival expert that teaches in the context of your climate/environment.
Since your profile reads "Canada" you may want to look up some videos/books by Mors Kochanski. Mr. Kochanski is a world renown bushcraft expert and will give you many more helpful/useful tips on survival and bushcraft in your area.

Les "survivorman" Stroud is also a good Canadian survival expert and his videos make for a good brief introduction to survival tips. However remember that his shows are heavily edited for entertainment and may leave out many details that you may want for developing a skill set.

Cheers,
L