Smiley didn’t love Star Trek but he watched it whenever it was on. It was meditation. He knew all the words and as they were spoken they messaged his brain into nostalgic comfort. By Star Trek I mean the first real Star Trek. Not any of that crap that came later.
Martha hates Star Trek in all its manifestations. She pointed out the plot holes and bad logic at every opportunity. Smiley didn’t care. The more Martha complained the more aroused she got. Post Star Trek argument sex was the best. Still Martha asked, “How can you watch this crap?”