The phrase "a lecture where" is correct and usable in written English.
It can be used to introduce a specific type of lecture or to describe the setting or context of the lecture.
Example: "I attended a lecture where the speaker discussed the impact of climate change on global economies."
Alternatives: "a talk in which" or "a presentation that".
But one of Hameed's subjects told him a story of being in a lecture where the lecturer started by asking if there were any creationists in the room.
Just a few months earlier he'd been in a lecture where this entity was mentioned.
Komlos heard Fogel speak at a lecture, where he told students to go out there and collect some heights.
A lecture, where we learn the theory behind our meditative experiences, more meditation and bed at 9.30pm.
"I've never been in a lecture where I haven't seen someone checking their e-mail when they were supposed to be doing stuff," said Bill Walsh, a student at the Massachusetts Institute of Technology.
In 2005 at the University of Florida, I attended a lecture where Queer Theorist Jack Halberstam asserted that butch lesbians, and female masculinity in general, would never be embraced by a media perpetually shaped by male desire.
At the start of the novel, the narrator attends a public lecture where she watches a scene from "Swing Time," the 1936 Astaire movie that gives Smith's novel its title.
A fiercely passionate talker, an hour with Thaemlitz is like having a sociology lecture where you can't fall asleep at the back of the class.
A. About a year after the Nature paper came out, I gave a public lecture where this bearded guy, with only socks and duct tape on his feet, came up to me and said, "I don't like to wear shoes when I run — how come?" He'd become a barefoot runner because his feet hurt in shoes.
In a fascinating lecture, Where Is Wagner's Faust, Irmgard Wagnerr (no relation) argues the composer turned away from Faust because it "gave him the creeps".
During a college lecture where Dr. Maggie Walsh is discussing the difference between language and communication, Buffy has a dream in which Riley kisses her.
