The Real Thing: Part 2 - S4-E2
Continuity mistake: In the previous episode Jennifer sees Ellen Reed for the first time while talking to Alex (when Alex is holding Andy). In this episode, she sees Alex viewing picture of Ellen and asks "who is Ellen Reed?" as if she had never seen her before. (00:12:10)
Suggested correction: It may be that Jennifer saw Ellen Reed, but at the time did not know her name was Ellen Reed, just a random girl Alex was with. Did Alex introduce her as Ellen Reed to Jennifer? I haven't seen this episode in decades, but this is just a possible theory.