The first season averaged 4.8 million viewers, slightly higher than the fourth season of Buffy.

The third season averaged 4.4 million viewers, slightly lower than the sixth season of Buffy.

The second season averaged 4.1 million viewers, slightly lower than the fifth season of Buffy.

The series was closely linked to the seventh season of Buffy.

Jonathan, a recurring character since the second season of Buffy, is killed.

Their relationship goes more in depth than it was during the first season of Buffy, which was fleeting at best.

The fourth season averaged 3.7 million viewers, slightly lower than the seventh and final season of Buffy.

Supposed to be set in the middle of season 3 of Buffy.

The story takes place after the seventh season of Buffy.

Darla was killed by Angel in season 1 of Buffy.