Let's give a hand to YouTuber T.L. Hughes who has found major market local TV newscast opens from the 70s to the present. I've embedded the Houston and Dallas videos Hughes posted to his account (some Texas stations are not available at this time).
It's fascinating for a TV nerd like myself to watch the evolution of the local television newscast open. In watching the Houston clips, it's amazing to see today's talent in their early days, talent move from station to station, talent who moved to bigger jobs and other talent that were here and gone so fast I don't even remember them!
Get the popcorn ready and settle in your chair...CLICK HERE TO SEE THE TEXAS VIDEOS
KPRC 2 from 1983 to present
KHOU 11 from 1981 to present
KTRK abc13 from 1979 to present
FOX 26 KRIV from 1988 to present
UPDATE Telemundo's Martin Berlanga tweeted me this clip from the HoustonArchive's channel YouTube account:
KTMD opens from 1989 to mid 1990s
FOX 4 KDFW from 1979 to present
UPDATE: KXAS in Dallas-Fort Worth from 1967 to present
UPDATE: WFAA in Dallas-Fort Worth from 1978 to present
KTVT 1995 to present
KDAF from 1999 to present