Spike was actually cutting lines from scenes of Voyager for the sake of more commercial time.
Not just Voyager, but TNG also. I remember in "A Fistful of Datas", near the very beginning, they cut several lines from Picard's exchange with Worf in his quarters.
This isn't a "syndication cut", per se, but one time,
years ago, some station or other was showing The Undiscovered Country. Now, Gorkon's ship gets hit by two torps in the actual movie; both of them are seen hitting the ship on-screen. This TV station cut the second torpedo strike entirely, creating additional confusion that wasn't supposed to be there for anyone who hadn't seen the full movie when Spock says "Captain, according to our data banks, we have fired.
Twice."
One of the worst cuts is from DS9's pilot episode, for the conversion to a two-parter. When the Cardassian warships are threatening to attack, O'Brien creates the illusion of a heavily armed station, with 5000 photon torpedoes and integrated phaser banks on every level. Of course, it's not true, and the Cardies do suspect that it's a trick. But 3 years later, in "The Way of the Warrior," when the Klingon fleet is poised to attack the station, they scan it and read 5000 torps and integrated phasers, only
this time, it's all real. Martok scoffs at the readings, saying it's "an illusion created by thoron fields and duranium shadows!" Which is exactly what it WAS in "Emissary", but no longer. The cut from the pilot ep was a shame, because that moment in WotW was made much cooler by that connection all the way back to a moment at the very beginning of the series.