Please have a look at this sentence:
We haven't gotten a lot of Finnish groups that we liked here at Bananas but I'm pretty happy with this four tracker from Helsinki, apparently recorded in the same place where the Ramones played in the 70's.
The first verb is in present perfect (up to now) and the second is in simple past tense. I don't understand the simple past for the second verb.
Why "like" is not in its present perfect form as the first verb is?