Just if anyone else is struggling to scan for channels in Norway (I am in Bærum) use the following scanning details:
DVB-C Legacy:
root@timeshift:/usr/share/dvb/dvb-legacy/dvb-c# cat no-Oslo-CanalDigital
C 354000000 6952000 NONE QAM64
C 362000000 6952000 NONE QAM64
C 370000000 6952000 NONE QAM64
C 378000000 6952000 NONE QAM64
C 386000000 6952000 NONE QAM64
C 394000000 6952000 NONE QAM64
C 402000000 6952000 NONE QAM64
C 410000000 6952000 NONE QAM64
C 418000000 6952000 NONE QAM64
C 426000000 6952000 NONE QAM64
C 450000000 6952000 NONE QAM64
C 474000000 6952000 NONE QAM64
root@timeshift:/usr/share/dvb/dvb-c# cat no-Oslo-CanalDigital
# no-oslo-CanalDigital (cable)
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 354000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 362000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 370000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 378000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 386000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 394000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 402000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 410000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 418000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 426000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 450000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
[CHANNEL]
DELIVERY_SYSTEM = DVBC/ANNEX_A
FREQUENCY = 474000000
SYMBOL_RATE = 6952000
INNER_FEC = NONE
MODULATION = QAM/256
INVERSION = AUTO
Basically symbolrate needs to be 6952 (not 6950) and QAM is 256. 
This should probably be updated by package maintainer or add a new file for Bærum. Not sure which