00:00 - Episode 1
00:04 - Episode 6
00:07 - Episode 7
00:51 - Episode 8
01:50 - Episode 9
02:55 - Episode 10
04:56 - Episode 11
07:48 - Episode 12

There are in total 266 TV/BD differences in Season 2. These are the numbers for the other seasons:
Season 1: 2,343
Season 2: 266
Season 3 Part 1: 148
Season 3 Part 2: 133
Season 4 Part 1: 1,048
Season 4 Part 2: 542

These are the numbers adjusted for episode count:
Season 1: 94
Season 2: 22
Season 3 Part 1: 12
Season 3 Part 2: 13
Season 4 Part 1: 66
Season 4 Part 2: 45

See graph here: https://imgur.com/a/scCdJEJ

Here are GIF versions of all these differences compiled in an album. In some of the TV/BD differences, the difference is unclear, so in the albums there are descriptions that will tell you what the difference is (if the gifs don't work, change browser, view it on your phone, or view it in "Desktop mode" on your phone): https://imgur.com/a/UGomePb

Credits to me for spotting the differences and making the comparisons. Sony Vegas was used to compare the pixels of the TV version with the pixels of the BD version.

Most of these comparisons are image comparisons, as you can see. However, some of them are video comparisons, and I have to apologize for the video comparisons having worse quality, the reason being they are GIF videos while the image comparisons are PNG images.

Music used in the video:
-進撃vn-pf20130524巨人
-AOTs2M他2
-AOTs2M他1