MCF's COMMON 4

So, the other day I thought I had this great “new” idea about geek degrees of separation, asking readers to find the connections in various geeky lists. But, as I suspected after thinking about the idea some more, I realized my “new” idea was MCF's COMMON, a little game we haven't played in about a year.

It's a pretty simple concept. Below are 20 items broken down into 5 groups of 4. Within each group, there is some common bond. For example, if I listed apple, orange, grape, and pear in one group, the answer would be “fruit”. Of course, to make it interesting, the connections won't be that obvious. Or, in some cases, it might be so obvious that you second guess yourself and miss it. Most importantly, it should be fun!

20 items. 5 COMMON bonds. Can you name them all?

GROUP 1
(A) Hart to Hart.
(B) Suddenly Susan.
(C) Star Trek.
(D) Unsolved Mysteries.

GROUP 2
(A) Africa.
(B) Canada.
(C) Germany.
(D) Russia.

GROUP 3
(A) Keri Russell.
(B) Jennifer Garner.
(C) Evangeline Lilly.
(D) Anna Torv.

GROUP 4
(A) Chris Latta.
(B) Aron Kincaid.
(C) Scott McNeil.
(D) Rob Zombie.

GROUP 5
(A) Mass Increase.
(B) Fire Manipulation.
(C) Limited-time Invulnerability.
(D) Flying Raccoon Transmogrification.