the show saying bughead is endgame without using that specific word thread :
1x07
1x13
2x05
2x06
2x12
2x21
3x01
3x16
3x16
3x16
4x02
4x03
4x04
4x11
4x11
4x12
2.22
4.15
4.15
4.11
4.16
4.17