When Riggins is at the pep rally he is wearing the Panther's new uniform, with the white stripes that come over the shoulder. However, after he helps Lyla take the drunken Buddy back to his apartment, he is wearing the old version of the uniform, with no white stripes.
Jason Street tells Tammy that he recently had a dream with her in it and after that dream he could make a fist for the first time since his injury. However he made a fist (and used it) when he punched Tim Riggins in the face for sleeping with Lyla.
In the last show of season one the Panthers win the State Championship. During the parade and later in the locker room the Championship shirts the team is wearing are dated 2007. In the second show of the following season when Buddy arrives at the house to pick up the kids and argues with Pam, he is wearing a similar Championship t-shirt dated 2006. Then later at the pep rally the team is introduced as the 2006 State Champions.