Unidentified Cracked Part in Chassis; Magnavox 1960 TV

[Magnavox300]

I am sure this is an all too common part, but since I am new to this hobby,
I have no Idea what it is.
It looks like a glass or plastic capacitor or resistor, maybe neither,
with copper windings inside, and it has a small crack running along the bottom.
I just replaced most of the capacitors, should I worry about this?
Also, the light blue rectangular resistor next to it looks worn, should I replace it, or do they commonly look that way.
Thanks for any help!

Magnavox300