If you still intend to implement an CATV amplifier with discrete components;
**Cascode topology will give you the best result
**NXP Wideband BJT Transistors ( BFX series) are very suitable for that application
**If you are able to use a simulator ( any kind linear/nonlinear) you can reach very nice results because wideband amplifiers need optimization process.
**Cascade topology will also give you a result but it won't be very wideband ( it's up to you, if you don't need no more than one octave..)
Design will be a bit tedious..