now I'm confused, if you have cable why do you have a cable box?
"Normally" cable TV needs a cable box. Depending on the TV what you get by hooking the cable directly to the back of the TV will vary. The minimum would be only those channels between cable 2 and cable 13 that are non-digital and not scrambled and only when the TV is setup for NTSC (as opposed to ATSC). If the TV has a CATV tuner setting in addition to NTSC and ATSC then you may get a number of other unscrambled channeles.
The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.