Ordinarily, I tend to the Bat-cave on Wednesday evenings.
6 seconds sound clip from Batman (1966) - A Death Worse Than Fate (S1E10) TV Series.
You can hear this line at 00:10:11 in the Blu-ray version of the episode.
Quote context
[...]
- Excuse me, sir, but I can't help feeling that this whole somber episode is my fault.
- Had I not been down dusting the Bat-cave when that false phone call arrived...
- Good heavens! Perish the thought, Alfred. You were performing your proper duty.
- Begging you pardon, sir. Not true.
- Ordinarily, I tend to the Bat-cave on Wednesday evenings.
- I fail to do so because of my addiction to a certain television program.
- Listen, Alfred, rid yourself of guilt.
- If it hadn't been for her mishap, I wouldn't have deduced the criminal's identity.
[...]