When it is unplugged and the capacitors are discharged (which you also can measure with the MM) you should be quite safe.
You can measure components with the multimeter. Note that while they are in circuit, other components in parallel, can influence the reading. So to measure the true value of a suspected component you'd maybe have to unsolder and lift at least one leg.
PS: More caution is needed with CRTs. Their capacitors can hold high voltages over long periods of time so this is a different league.
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