To make clearer: RTS buses are classified by certain destinations. There is 01 (1977), 03 (1978-1980), 04 (1980-1986), and 06 (1987-2002). Snookie's "Mark" thing could have based on this, but can still be considered incorrect. I suggest not using "Series" to ease confusion and just either go for the number or not at all. There are also some RTS'es misidentified based on old info. I will drop notes about the incorrect info on the incorrect buses. Thanks.